{"title":"Dissolved Oxygen","description":"\u003cp\u003e\u003cstrong\u003eDissolved oxygen (DO) is one of the most important indicators of water quality.\u003c\/strong\u003e It is essential for the survival of fish and other aquatic organisms and is used in hydroponics as well. When dissolved oxygen becomes too low, fish and other aquatic organisms cannot survive. Sper Scientific dissolved oxygen meters are made to accommodate the user with rugged, portable meters for use out in the field. All of our DO meters offer fast and accurate DO response times in wastewater, surface water and aquaculture applications. Three basic styles of DO meters are available for varying applications: Pens, Portable Meters, and Multi-parameter meters.\u003c\/p\u003e","products":[{"product_id":"waterproof-dissolved-oxygen-meter-pen","title":"Waterproof Dissolved Oxygen Meter Pen","description":"\u003ch3\u003eMeasures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal wastewater, aquariums and fish hatcheries.\u003c\/h3\u003e\n\u003cp\u003eDesigned for simple one-hand operation with automatic temperature compensation and calibration to air. The polarographic probe has a built in temperature sensor and easy-to-replace pop-off probe heads.\u003c\/p\u003e\n\u003cp\u003eSimultaneously displays dissolved oxygen and temperature readings. Also holds readings and recalls minimum and maximum. IP65 waterproof. Comes ready to use in a soft carrying case with belt loop, two spare probe heads, electrolyte and 4 AAA batteries. EPA Equivalency Method: 360.1\u003cbr\u003e\u003cbr\u003eDimensions: 7¾\" × 1½\" × 1½\" (197 × 38 × 38 mm)\u003cbr\u003eWeight: 4.1 oz (116 g)\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 529px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 170px; height: 19px;\"\u003e\u003cb\u003eUnit of Measure:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 140px; height: 19px;\"\u003e\u003cb\u003eRange:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125px; height: 19px;\"\u003e\u003cb\u003eResolution:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 131px; height: 19px;\"\u003e\u003cb\u003eAccuracy:\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 17.375px;\"\u003e\n\u003ctd style=\"width: 132px; height: 17.375px;\"\u003e\u003cb\u003eDO:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 113px; height: 17.375px;\"\u003e0 to 20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 125px; height: 17.375px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 131px; height: 17.375px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 16px;\"\u003e\n\u003ctd style=\"width: 132px; height: 16px;\"\u003e\u003cb\u003eOxygen % in Air:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 113px; height: 16px;\"\u003e0 to 100% O\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 125px; height: 16px;\"\u003e0.1% O\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 131px; height: 16px;\"\u003e±0.7% O\u003csub\u003e2\u003c\/sub\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 132px; height: 19px;\"\u003e\u003cb\u003eTemperature ºF:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 113px; height: 19px;\"\u003e32 to 122ºF\u003c\/td\u003e\n\u003ctd style=\"width: 125px; height: 19px;\"\u003e0.1ºF\u003c\/td\u003e\n\u003ctd style=\"width: 131px; height: 19px;\"\u003e±1.5ºF\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19px;\"\u003e\n\u003ctd style=\"width: 132px; height: 19px;\"\u003e\u003cb\u003eTemperature ºC:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 113px; height: 19px;\"\u003e0 to 50ºC\u003c\/td\u003e\n\u003ctd style=\"width: 125px; height: 19px;\"\u003e0.1ºC\u003c\/td\u003e\n\u003ctd style=\"width: 131px; height: 19px;\"\u003e±0.8ºC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850045-i.pdf?v=1598908089\" target=\"_blank\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" style=\"float: left;\" alt=\"PDF\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850045-i.pdf?v=1598908089\" target=\"_blank\"\u003e\u003cbr\u003eInstruction Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850045-b.pdf?v=1600278250\" target=\"_blank\"\u003e \u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" style=\"float: left;\" alt=\"PDF\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850045-b.pdf?v=1600278250\" target=\"_blank\"\u003e\u003cbr\u003eProduct Brochure\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ch4 style=\"text-align: left;\"\u003eComparison Chart\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ch2 style=\"text-align: center;\"\u003eCompare Sper Scientific Dissolved Oxygen (DO) Meters\u003c\/h2\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; height: 1455.1875px;\"\u003e\n\u003c!-- IMAGE ROW --\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 141px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 141px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Waterproof-Dissolved-Oxygen-Meter-Pen-525408.jpg?v=1752691879\" alt=\"Waterproof Dissolved Oxygen Meter Pen - Sper Scientific Direct\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.70379%; height: 141px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Combination-Water-Meter-Kit-with-pH-Probe.jpg?v=1752691876\" alt=\"Combination Water Meter Kit with pH Probe | Sper Scientific Direct\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.70379%; height: 141px;\"\u003e\n\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Dissolved-Oxygen-Meter-Kit-718738.jpg?v=1752691873\" alt=\"Dissolved Oxygen Meter Kit | Sper Scientific Direct\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable-860055-313971.jpg?v=1752691883\" alt=\"Rechargeable dissolved oxygen pen with 5 meter cable by Sper Scientific featuring a digital display.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/optical-dissolved-oxygen-meter-860067-101931.jpg?v=1752691897\" alt=\"Optical Dissolved Oxygen Meter 1\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/portable-optical-dissolved-oxygen-meter-860073-479959.jpg?v=1752691863\" alt=\"Portable DO Meter and Sensor\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- HEADER --\u003e\n\u003ctr style=\"background: rgb(40, 113, 232); color: rgb(255, 255, 255); height: 18px;\"\u003e\n\u003cth style=\"width: 17.005908%; height: 18px;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e850045\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850048DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" style=\"color: rgb(255, 255, 255);\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850081DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860055\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860067\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" style=\"color: rgb(255, 255, 255); text-decoration: underline;\" target=\"_blank\"\u003e860073\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 90px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 90px;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eWaterproof DO Meter Pen\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" rel=\"noopener\" target=\"_blank\"\u003eCombination Water Meter Kit w\/ DO Probe\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eDissolved Oxygen Meter Kit\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003cstrong\u003eRechargeable DO Pen w\/ 5 Meter Cable\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cstrong\u003eOptical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cstrong\u003ePortable Optical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (% Saturation)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–100% O₂ in air\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–200%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–100.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–199.9%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–200.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0-200%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.00–20.00 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0 -20 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eDO Accuracy (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u0026lt;5: ±0.3 mg\/L≥5: ±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.3mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Accuracy (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±2% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% of Full Scale\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Range\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50.0°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40.0°C \/ 32–104°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0°–45°C \/ 32°–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Accuracy\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.8°C \/ 1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.8°C \/ ±1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C (0.9°F)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eAuto Temp. Comp. (ATC)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e10–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSalinity Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBarometric Pressure Comp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e500–760 mmHg(66.7–101.3 kPa)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual, 50–115 kPa\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Calibration\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Button (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (100% air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eProbe Technology\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Warmup Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;60 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eNone\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~10 min (cal.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Response Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;30 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eFast\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor\/Probe Lifetime\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;6 months\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures pH\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures ORP \/ mV\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Conductivity\/TDS\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Salinity\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eMemory \/ Data Storage\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eMax\/Min record\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e+100,000 memory points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eRS232 \/ Data Output\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eRS232\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDisplay Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eDual LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eLarge backlit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSimultaneous DO \u0026amp; Temp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18.1875px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 18.1875px;\"\u003eBacklight\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBattery Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e9V\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e3.7V 500mAh Rechargeable Li-ion\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(6) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eRechargeable Li-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eCharging\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB Type-C(~1.5 hr)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67 Housing \/ IP-68 Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSpare Probe Heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eElectrolyte Solution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eVideos\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe width=\"535\" height=\"300\" src=\"https:\/\/www.youtube.com\/embed\/ZbVYWO6xe3A\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":33392011837576,"sku":"850045","price":354.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Waterproof-Dissolved-Oxygen-Meter-Pen-525408.jpg?v=1752691879"},{"product_id":"dissolved-oxygen-meter-kit","title":"Dissolved Oxygen Meter Kit","description":"\u003ch1\u003eReliable DO readings at a reasonable price\u003c\/h1\u003e\n\u003cp\u003eMeasures dissolved oxygen to determine water quality in environmental testing, labs, industrial and municipal wastewater, aquariums and fish hatcheries. The back-lit display simultaneously displays dissolved oxygen (in % or mg\/L) and temperature readings (in °C or °F). Automatic temperature compensation as well as manual compensation for salinity and altitude. Features simple one-button calibration to air. DO probe heads include built in membranes and screw on and off for easy replacement. Also functions as a pH, ORP, Conductivity, TDS or Salinity meter when used with the optional probes (sold separately). \u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eComes in a hard carrying case complete with one DO probe, two spare probe heads, electrolyte, instructions and a 9V battery.\u003c\/strong\u003e \u003cbr\u003e\u003cbr\u003eEPA Equivalency Method: 360.1.\u003cbr\u003e\u003cbr\u003eMeter Dimensions: 7\" × 2¾\" × 1¼\" (177 × 68 × 45 mm)\u003cbr\u003eMeter Weight: 16 oz (489 g)\u003cbr\u003eKit Dimensions: 11\" × 9½\" × 2\" (279 × 241 × 51 mm\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003cdiv class=\"nav_content\"\u003e\n\u003ctable style=\"width: 528px;\" class=\"specs_chart\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123px;\" class=\"specs_chart\"\u003e\u003cb\u003eUnit of Measure:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 127px;\" class=\"specs_chart\"\u003e\u003cb\u003eRange:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125px;\" class=\"specs_chart\"\u003e\u003cb\u003eResolution:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 125px;\" class=\"specs_chart\"\u003e\u003cb\u003eAccuracy:\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123px;\" class=\"specs_chart\"\u003e\u003cb\u003eDO:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 127px;\" class=\"specs_chart\"\u003e0 to 20 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 125px;\" rowspan=\"3\" class=\"specs_chart\"\u003e0.1\u003c\/td\u003e\n\u003ctd style=\"width: 125px;\" class=\"specs_chart\"\u003e±0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123px;\" class=\"specs_chart\"\u003e\u003cb\u003eO\u003csup\u003e2\u003c\/sup\u003e\u003cspan\u003e \u003c\/span\u003ein Air:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 127px;\" class=\"specs_chart\"\u003e0 to 100.0%\u003c\/td\u003e\n\u003ctd style=\"width: 125px;\" class=\"specs_chart\"\u003e±0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 123px;\" class=\"specs_chart\"\u003e\n\u003cb\u003eTemperature\u003c\/b\u003e:\u003c\/td\u003e\n\u003ctd style=\"width: 127px;\" class=\"specs_chart\"\u003e0 to 50°C\u003cbr\u003e32 to 122°F\u003c\/td\u003e\n\u003ctd style=\"width: 125px;\" class=\"specs_chart\"\u003e±0.8°C\u003cbr\u003e±1.5°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr\u003e\u003cbr\u003e \u003c\/div\u003e\n\u003cdiv class=\"dt_tab_infobox\"\u003e\n\u003cdiv class=\"dt_tab_infobox_inner\"\u003e\n\u003cdiv class=\"nav_heading\"\u003e\u003ca class=\"tab_anchor\" id=\"standards_tab\" name=\"standards_tab\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850081DOK-i.pdf?v=1602086011\" target=\"_blank\"\u003e \u003cimg alt=\"PDF\" style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850081DOK-i.pdf?v=1602086011\" target=\"_blank\"\u003e\u003cbr\u003eInstruction Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850081DOK-b.pdf?v=1600278280\" target=\"_blank\"\u003e \u003cimg alt=\"PDF\" style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850081DOK-b.pdf?v=1600278280\" target=\"_blank\"\u003e\u003cbr\u003eProduct Brochure\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ch4 style=\"text-align: left;\"\u003eComparison Chart\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ch2 style=\"text-align: center;\"\u003eCompare Sper Scientific Dissolved Oxygen (DO) Meters\u003c\/h2\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; height: 1455.1875px;\"\u003e\n\u003c!-- IMAGE ROW --\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 141px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 141px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"Waterproof Dissolved Oxygen Meter Pen - Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Waterproof-Dissolved-Oxygen-Meter-Pen-525408.jpg?v=1752691879\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 141px;\" align=\"center\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" target=\"_blank\"\u003e\u003cimg alt=\"Combination Water Meter Kit with pH Probe | Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Combination-Water-Meter-Kit-with-pH-Probe.jpg?v=1752691876\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 141px;\" align=\"center\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cimg alt=\"Dissolved Oxygen Meter Kit | Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Dissolved-Oxygen-Meter-Kit-718738.jpg?v=1752691873\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 141px;\" align=\"center\"\u003e\n\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Rechargeable dissolved oxygen pen with 5 meter cable by Sper Scientific featuring a digital display.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable-860055-313971.jpg?v=1752691883\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Optical Dissolved Oxygen Meter 1\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/optical-dissolved-oxygen-meter-860067-101931.jpg?v=1752691897\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Portable DO Meter and Sensor\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/portable-optical-dissolved-oxygen-meter-860073-479959.jpg?v=1752691863\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- HEADER --\u003e\n\u003ctr style=\"background: rgb(40, 113, 232); color: rgb(255, 255, 255); height: 18px;\"\u003e\n\u003cth style=\"width: 16.885678%; height: 18px;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"width: 13.770845%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e850045\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.606906%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" style=\"color: rgb(255, 255, 255);\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850048DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.606906%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850081DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 14.426599%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860055\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.770845%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860067\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.770845%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e\u003ca style=\"color: rgb(255, 255, 255); text-decoration: underline;\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e860073\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 90px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 90px;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cstrong\u003eWaterproof DO Meter Pen\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 90px;\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" target=\"_blank\"\u003eCombination Water Meter Kit w\/ DO Probe\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cstrong\u003eDissolved Oxygen Meter Kit\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eRechargeable DO Pen w\/ 5 Meter Cable\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eOptical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003ePortable Optical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eDO Range (% Saturation)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0–100% O₂ in air\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0–200%\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0–100.0%\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e0.0–199.9%\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.0–200.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0-200%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eDO Range (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0–20 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e0.00–20.00 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0 -20 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 54px;\"\u003eDO Accuracy (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003e\u0026lt;5: ±0.3 mg\/L≥5: ±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003e±0.3mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eDO Resolution (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e0.01 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.01mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eDO Accuracy (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e±2% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e±3% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e±3% of Full Scale\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eDO Resolution (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eTemp. Range\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e0–50.0°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0–40.0°C \/ 32–104°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0°–45°C \/ 32°–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eTemp. Accuracy\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e±0.8°C \/ 1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e±0.8°C \/ ±1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e±0.5°C (0.9°F)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eTemp. Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eAuto Temp. Comp. (ATC)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e10–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eSalinity Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 54px;\"\u003eBarometric Pressure Comp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 54px;\"\u003e500–760 mmHg(66.7–101.3 kPa)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003eManual, 50–115 kPa\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eDO Calibration\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e1-Button (air)\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e1-Point (100% air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 54px;\"\u003eProbe Technology\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eSensor Warmup Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e\u0026lt;60 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eNone\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e~10 min (cal.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eSensor Response Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e\u0026lt;30 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eFast\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eSensor\/Probe Lifetime\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e\u0026gt;6 months\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eMeasures pH\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eMeasures ORP \/ mV\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eMeasures Conductivity\/TDS\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eMeasures Salinity\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 54px;\"\u003eMemory \/ Data Storage\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003eMax\/Min record\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003e+100,000 memory points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eRS232 \/ Data Output\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003eRS232\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eDisplay Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eDual LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003eLarge backlit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eSimultaneous DO \u0026amp; Temp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18.1875px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 18.1875px;\"\u003eBacklight\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 54px;\"\u003eBattery Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003e9V\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 54px;\"\u003e3.7V 500mAh Rechargeable Li-ion\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003e(6) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003eRechargeable Li-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eCharging\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003eUSB Type-C(~1.5 hr)\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 54px;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 54px;\"\u003eIP-67 Housing \/ IP-68 Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eSpare Probe Heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 16.885678%; height: 36px;\"\u003eElectrolyte Solution\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.606906%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 14.426599%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.770845%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003eVideos\u003c\/h4\u003e\n\u003cp\u003e\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/fAabYqmckbg\" height=\"300\" width=\"535\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":33825106919560,"sku":"850081DOK","price":452.1,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Dissolved-Oxygen-Meter-Kit-718738.jpg?v=1752691873"},{"product_id":"do-electrolyte","title":"DO Electrolyte","description":"\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOne 30ml Bottle. For use with the following:\u003c\/b\u003e\u003cspan\u003e\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cspan\u003eDissolved Oxygen Meter Kit w\/ 4m Probe - 840041\u003c\/span\u003e\u003cbr\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/waterproof-dissolved-oxygen-meter-pen?variant=33392011837576\" title=\"Sper Scientific 850045  Waterproof Dissolved Oxygen Meter Pen\"\u003eDissolved Oxygen Pen - 850045\u003c\/a\u003e\u003cbr\u003e\u003cspan style=\"text-decoration: underline; color: #000000;\"\u003e\u003cspan style=\"text-decoration-style: initial; text-decoration-color: initial;\"\u003eDissolved Oxygen Probe - 850087\u003c\/span\u003e\u003c\/span\u003e\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/dissolved-oxygen-meter-kit\" title=\"Sper Scientific 850081DOK  Dissolved Oxygen Meter Kit\"\u003eATC Dissolved Oxygen Probe - 850081DO\u003c\/a\u003e\u003c\/p\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":36708529864861,"sku":"840044","price":16.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/DO-Electrolyte-480858.jpg?v=1752691901"},{"product_id":"combination-water-meter-kit-with-do-probe","title":"Combination Water Meter Kit with Dissolved Oxygen Probe","description":"\u003ch1\u003eThis Multi-Purpose Water Meter can Measure \u003cmeta charset=\"utf-8\"\u003eDissolved Oxygen (DO) , pH, Conductivity, TDS, Salinity \u003cmeta charset=\"utf-8\"\u003eor Temperature \u003cmeta charset=\"utf-8\"\u003eUsing Different Probes.\u003c\/h1\u003e\n\u003cp\u003eThe kit includes includes one DO probe. Additional probes (optional) also allow it to operate as a highly accurate pH meter, Conductivity meter, TDS meter, Salinity meter or DO meter as desired.\u003cbr\u003e\u003cbr\u003eProbes change are easily changed and include specially designed guards to prevent tip damage. This meter is the ideal tool for numerous professional water testing applications including: aquaculture, laboratories, swimming pools, spas and water treatment facilities.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan\u003eLarge, backlit LCD can display multiple parameters including: \u003c\/span\u003epH, Conductivity, TDS, Salinity, Dissolved Oxygen, Temperature \u003cbr\u003e(using different probes)\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eDisplayed parameter is determined by probe type\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eGreen backlight for dark environment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eFast measuring of Dissolved Oxygen value\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAccurate, replaceable probes with safety caps\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto ranging conductivity measurement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAuto temperature compensation (ATC)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e99 points memories w\/recall function\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eMultiple points calibration: 3 points for pH, 1 point for DO, 4 points for conductivity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManually altitude and salinity compensation function for DO measurement\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eAvailable replacement probes\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eTemperature unit ℃\/℉ is switchable\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e1 hour auto power off\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\n\u003cmeta charset=\"utf-8\"\u003e \u003cstrong\u003e#850048DOK Kit includes: \u003cbr\u003eCombo Meter, DO Probe \u003cmeta charset=\"utf-8\"\u003ew\/10 foot cable, (2) Heads, Battery, Manual, Hard Carry Case \u003c\/strong\u003e\n\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable width=\"86%\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003ch4\u003e\u003cstrong\u003e850048\u003c\/strong\u003e\u003c\/h4\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003epH Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e2.00~12.00\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003epH Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0.01\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003epH Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e±0.1\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eConductivity Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0~199.9, 0~1999 us\/cm\u003cbr\u003e 0~19.99, 0~150.0 ms\/cm　\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eConductivity Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0.1 us\/cm, 1 us\/cm, 0.01ms\/cm, 0.1 ms\/cm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eConductivity Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e±1% of F.S ±1 digit\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eTDS Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0~199.9*f, 0~1999*f ppm\u003cbr\u003e0~19.99*f, 0~150.0*f ppt\u003cbr\u003e(f is TDS factor)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eTDS Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e±1% of F.S ±1 digit\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eTDS Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0.1, 1ppm, 0.01, 0.1ppt\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eTDS Factor\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0.30~1.00\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSalinity Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0~10.00 ppt, 0~42.0 ppt (SEA Water)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSalinity Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0.01 ppt, 0.1 ppt\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eSalinity Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e±1% of F.S ±1 digit\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eD.O. Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0.0~199.9% (0.0~30.0 mg\/L)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eD.O. Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0.1\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eD.O. Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e±3% of F.S ±1 digit\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eTemperature Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e-5~60.0℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eTemperature Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0.1\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eTemperature Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e±0.5℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eCompatible Probe\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003epH probe, EC probe, D.O. Probe\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eLCD Size\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e44(L) * 26(W) mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eOperating Temperature\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0~50℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eOperating RH%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003eHumidity ＜80%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eStorage Temperature\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e0~60℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eStorage RH%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003eHumidity ＜90%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eMeter Size\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e175(L) * 70(W) * 33(H)mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eWeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003e~200g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eBattery\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003eAAA battery *4 PCS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eStandard Package\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003eCombo Meter, \u003cmeta charset=\"utf-8\"\u003eD.O. Probe, \u003cmeta charset=\"utf-8\"\u003eD.O. Electrolyte, 2 Heads, 4 AA Batteries, Manual, Hard Carry Case \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003e\n\u003cp\u003eOptional Probes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"59%\"\u003e\n\u003cp\u003epH Probe, Conductivity Probe,\u003cbr\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850048-i.pdf?v=1652391400\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850048-i.pdf?v=1652391400\"\u003e\u003cimg alt=\"PDF\" style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/850048-i.pdf?v=1652391400\"\u003e\u003cbr\u003eInstruction Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ch4 style=\"text-align: left;\"\u003eComparison Chart\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ch2 style=\"text-align: center;\"\u003eCompare Sper Scientific Dissolved Oxygen (DO) Meters\u003c\/h2\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; height: 1455.1875px;\"\u003e\n\u003c!-- IMAGE ROW --\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 141px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 141px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Waterproof-Dissolved-Oxygen-Meter-Pen-525408.jpg?v=1752691879\" alt=\"Waterproof Dissolved Oxygen Meter Pen - Sper Scientific Direct\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.70379%; height: 141px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Combination-Water-Meter-Kit-with-pH-Probe.jpg?v=1752691876\" alt=\"Combination Water Meter Kit with pH Probe | Sper Scientific Direct\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.70379%; height: 141px;\"\u003e\n\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Dissolved-Oxygen-Meter-Kit-718738.jpg?v=1752691873\" alt=\"Dissolved Oxygen Meter Kit | Sper Scientific Direct\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable-860055-313971.jpg?v=1752691883\" alt=\"Rechargeable dissolved oxygen pen with 5 meter cable by Sper Scientific featuring a digital display.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/optical-dissolved-oxygen-meter-860067-101931.jpg?v=1752691897\" alt=\"Optical Dissolved Oxygen Meter 1\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/portable-optical-dissolved-oxygen-meter-860073-479959.jpg?v=1752691863\" alt=\"Portable DO Meter and Sensor\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- HEADER --\u003e\n\u003ctr style=\"background: rgb(40, 113, 232); color: rgb(255, 255, 255); height: 18px;\"\u003e\n\u003cth style=\"width: 17.005908%; height: 18px;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e850045\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850048DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" style=\"color: rgb(255, 255, 255);\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850081DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860055\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860067\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" style=\"color: rgb(255, 255, 255);\" target=\"_blank\"\u003e860073\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 90px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 90px;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eWaterproof DO Meter Pen\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" rel=\"noopener\" target=\"_blank\"\u003eCombination Water Meter Kit w\/ DO Probe\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eDissolved Oxygen Meter Kit\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003cstrong\u003eRechargeable DO Pen w\/ 5 Meter Cable\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cstrong\u003eOptical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cstrong\u003ePortable Optical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (% Saturation)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–100% O₂ in air\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–200%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–100.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–199.9%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–200.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0-200%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.00–20.00 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0 -20 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eDO Accuracy (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u0026lt;5: ±0.3 mg\/L≥5: ±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.3mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Accuracy (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±2% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% of Full Scale\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Range\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50.0°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40.0°C \/ 32–104°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0°–45°C \/ 32°–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Accuracy\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.8°C \/ 1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.8°C \/ ±1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C (0.9°F)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eAuto Temp. Comp. (ATC)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e10–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSalinity Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBarometric Pressure Comp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e500–760 mmHg(66.7–101.3 kPa)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual, 50–115 kPa\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Calibration\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Button (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (100% air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eProbe Technology\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Warmup Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;60 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eNone\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~10 min (cal.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Response Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;30 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eFast\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor\/Probe Lifetime\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;6 months\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures pH\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures ORP \/ mV\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Conductivity\/TDS\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Salinity\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eMemory \/ Data Storage\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eMax\/Min record\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e+100,000 memory points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eRS232 \/ Data Output\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eRS232\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDisplay Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eDual LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eLarge backlit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSimultaneous DO \u0026amp; Temp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18.1875px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 18.1875px;\"\u003eBacklight\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBattery Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e9V\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e3.7V 500mAh Rechargeable Li-ion\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(6) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eRechargeable Li-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eCharging\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB Type-C(~1.5 hr)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67 Housing \/ IP-68 Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSpare Probe Heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eElectrolyte Solution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\n\u003cp\u003e\u003cbr\u003e√\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":42722119123168,"sku":"850048DOK","price":441.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Combination-Water-Meter-Kit-with-Dissolved-Oxygen-Probe.jpg?v=1752691852"},{"product_id":"do-probe-for-850048-water-quality-meter","title":"DO Probe for 850048 Water Quality Meter","description":"\u003cp\u003e\u003cstrong\u003eDissolved Oxygen Probe for use only with \u003ca href=\"https:\/\/sperdirect.com\/products\/combination-water-meter-kit-with-do-probe\"\u003eSper Scientific 850048 Combination Water Quality Meter\u003c\/a\u003e.\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eIncludes 10 foot cable and probe guard\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":42730890756320,"sku":"850048DO","price":211.6,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/DO-Probe-for-850048-Water-Quality-Meter.jpg?v=1752691857"},{"product_id":"dissolved-oxygen-do-electrolytes","title":"Dissolved Oxygen (DO) Electrolytes","description":"Dissolved Oxygen (DO) Electrolytes for use with:\u003cbr\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/combination-water-meter-kit-with-do-probe\" title=\"Sper Scientific 850048DOK DO Meter\"\u003eSper Scientific 800048DOK Dissolved Oxygen Meter\/Probe\u003c\/a\u003e\u003c\/strong\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":43986397069536,"sku":"850048E","price":17.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/dissolved-oxygen-do-electrolytes-850048e-127003.jpg?v=1752691869"},{"product_id":"dissolved-oxygen-do-probe-head-membrane","title":"Dissolved Oxygen (DO) Probe Head \/ Membrane","description":"Dissolved Oxygen (DO) Probe Head \/ Membrane for use with:\u003cbr\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/sperdirect.com\/products\/combination-water-meter-kit-with-do-probe\" title=\"Sper Scientific 850048DOK DO Meter\"\u003eSper Scientific 800048DOK Dissolved Oxygen Meter\/Probe\u003cbr\u003e\u003cbr\u003e\u003c\/a\u003e(2) DO Heads \/ Membranes per Pack\u003c\/strong\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":43986439373024,"sku":"850048H","price":21.85,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/dissolved-oxygen-do-probe-head-membrane-850048h-367477.jpg?v=1752691869"},{"product_id":"rechargeable-dissolved-oxygen-pen-with-5-meter-cable","title":"Rechargeable Dissolved Oxygen Pen with 5 Meter Cable","description":"\u003ch1\u003eThis Dissolved Oxygen meter is a pen-style tool that measures dissolved oxygen and temperature in water.\u003c\/h1\u003e\n\u003cp\u003eHigh sensitivity and accurate readings are enabled by a thin membrane kit and calibration in air. With a rechargeable environment-friendly battery, the device has a 5m cable for easy manipulation. It supports manual salinity and barometric pressure compensation and °C\/°F automatic temperature compensation built-in. A big LCD with adjustable brightness ensures visibility in dark places.\u003c\/p\u003e\n\u003cdiv class=\"category-heading-page mb-3\"\u003eThe portable DO meter can measure the dissolved oxygen level in water with unit of mg\/l in liquid. This meter is useful in a variety of applications where it is important to monitor dissolved oxygen levels in water, including:\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eAquaculture\u003c\/strong\u003e\u003cbr\u003eMeasuring dissolved oxygen value in water is critical in aquaculture operations to ensure that the fish or other aquatic organisms are getting enough oxygen to survive.\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003eEnvironmental Monitoring\u003c\/strong\u003e\u003cbr\u003eDissolved oxygen levels are an important indicator of water quality and can be used to assess the health of aquatic ecosystems. The\u003cb\u003e \u003c\/b\u003eDO Pen\u003cb\u003e \u003c\/b\u003e\u003cspan\u003ecan be used to monitor dissolved oxygen levels in lakes, rivers, and other bodies of water.\u003cbr\u003e\u003cbr\u003e\u003c\/span\u003e\n\u003c\/div\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan\u003eBacklit LCD with D.O. \u0026amp; Temperature display\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e100% D.O. calibration in air. Chemical is not required.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eEasy replaceable thin membrane kit with high sensitivity\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRefill electrolyte quickly. Simple to maintain\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eSelectable % and mg\/L unit for D.O. Value\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003e°C\/°F automatic temperature compensation built-in\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eManual salinity and barometric pressure compensation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eRechargeable battery via \u003cmeta charset=\"utf-8\"\u003eUSB type C port\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan\u003eBrightness adjustable backlight for dark places\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eComplete Kit includes:\u003c\/strong\u003e D.O. Pen Style Meter, D.O. Probe with 5 meter cable, plastic carrying case, rechargeable battery, USB-C cable, 1 bottle electrolyte solution, 2 replacement heads \u0026amp; instructions.\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 469px;\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 199px;\"\u003eFunction\u003c\/td\u003e\n\u003ctd style=\"width: 252.852px;\"\u003eValue\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eDO Measuring Range\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0.0~199.9 (in %)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eDO Accuracy\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e±3% F.S (in %)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eDO Resolution\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0.1% (in %)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eDO Measuring Range\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0.00~20.00 (in mg\/l)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eDO Accuracy\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e±0.4 (in mg\/l)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eDO Resolution\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0.01 (in mg\/l)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eTemp. Measuring Range\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0~50.0℃, 32~122°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eTemperature Accuracy\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e±0.5℃, 0.9°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eTemperature Resolution\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0.1℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eManual Compensation\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003eIncluded\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eSalinity Adjustable Range\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0.0~45.0 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eSalinity Resolution\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eBarometric Pressure\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e500~760 mmHg\/101.3~66.7 Kpa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eAdjustable Range\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eBarometric Pressure Resolution\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e1 mmHg\/0.1 Kpa\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eAuto Temp. Compensation\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e10~40.0℃ 50~104°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eLCD Size\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e30(L) *1 8 (W) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eOperating Temperature\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0~40℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eOperating RH%\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003eHumidity ＜85%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eStorage Temperature\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e0~40℃\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eStorage RH%\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003eHumidity ＜80%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eSensor Response Time\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e＜30 seconds\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eSensor Warmup time\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e＜60 seconds after power up\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eSensor Life Time\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e\u0026gt;6 months (with good maintenance)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eMeter Size\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e176(L) * 39(W) * 39(H) mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eWeight\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e~265g\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eBattery\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e3.7V@500mAh\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003ere-chargeable battery\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003ePower Consumption\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e60 hours operation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e(no backlight condition)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eRe-charging Time\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003e1.5 hours\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003eStandard Package\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003eMeter (with battery built-in),\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003eDissolve Oxygen (D.O.) Probe,\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003eElectrolyte, 2PCS membrane kits,\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003eUSB-type C charging cable,\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"font-weight: 400; width: 199px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"font-weight: 400; width: 252.852px;\"\u003eManual, Carry Case\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003c\/h4\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/810033-iB.pdf?v=1606941794\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860055-i.pdf?v=1694208713\"\u003e\u003cimg alt=\"PDF\" style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/810033-iB.pdf?v=1606941794\" target=\"_blank\"\u003e \u003cbr\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860055-i.pdf?v=1694208713\"\u003eInstruction Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ch4 style=\"text-align: left;\"\u003eComparison Chart\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ch2 style=\"text-align: center;\"\u003eCompare Sper Scientific Dissolved Oxygen (DO) Meters\u003c\/h2\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; height: 1455.1875px;\"\u003e\n\u003c!-- IMAGE ROW --\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 141px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 141px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"Waterproof Dissolved Oxygen Meter Pen - Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Waterproof-Dissolved-Oxygen-Meter-Pen-525408.jpg?v=1752691879\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 141px;\" align=\"center\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" target=\"_blank\"\u003e\u003cimg alt=\"Combination Water Meter Kit with pH Probe | Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Combination-Water-Meter-Kit-with-pH-Probe.jpg?v=1752691876\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 141px;\" align=\"center\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cimg alt=\"Dissolved Oxygen Meter Kit | Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Dissolved-Oxygen-Meter-Kit-718738.jpg?v=1752691873\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\n\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Rechargeable dissolved oxygen pen with 5 meter cable by Sper Scientific featuring a digital display.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable-860055-313971.jpg?v=1752691883\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Optical Dissolved Oxygen Meter 1\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/optical-dissolved-oxygen-meter-860067-101931.jpg?v=1752691897\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Portable DO Meter and Sensor\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/portable-optical-dissolved-oxygen-meter-860073-479959.jpg?v=1752691863\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- HEADER --\u003e\n\u003ctr style=\"background: rgb(40, 113, 232); color: rgb(255, 255, 255); height: 18px;\"\u003e\n\u003cth style=\"width: 17.005908%; height: 18px;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e850045\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" style=\"color: rgb(255, 255, 255);\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850048DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850081DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860055\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860067\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e860073\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 90px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 90px;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cstrong\u003eWaterproof DO Meter Pen\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" target=\"_blank\"\u003eCombination Water Meter Kit w\/ DO Probe\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cstrong\u003eDissolved Oxygen Meter Kit\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eRechargeable DO Pen w\/ 5 Meter Cable\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eOptical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003ePortable Optical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (% Saturation)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–100% O₂ in air\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–200%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–100.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–199.9%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–200.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0-200%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.00–20.00 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0 -20 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eDO Accuracy (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u0026lt;5: ±0.3 mg\/L≥5: ±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.3mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Accuracy (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±2% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% of Full Scale\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Range\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50.0°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40.0°C \/ 32–104°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0°–45°C \/ 32°–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Accuracy\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.8°C \/ 1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.8°C \/ ±1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C (0.9°F)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eAuto Temp. Comp. (ATC)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e10–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSalinity Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBarometric Pressure Comp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e500–760 mmHg(66.7–101.3 kPa)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual, 50–115 kPa\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Calibration\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Button (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (100% air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eProbe Technology\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Warmup Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;60 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eNone\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~10 min (cal.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Response Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;30 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eFast\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor\/Probe Lifetime\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;6 months\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures pH\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures ORP \/ mV\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Conductivity\/TDS\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Salinity\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eMemory \/ Data Storage\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eMax\/Min record\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e+100,000 memory points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eRS232 \/ Data Output\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eRS232\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDisplay Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eDual LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eLarge backlit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSimultaneous DO \u0026amp; Temp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18.1875px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 18.1875px;\"\u003eBacklight\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBattery Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e9V\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e3.7V 500mAh Rechargeable Li-ion\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(6) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eRechargeable Li-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eCharging\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB Type-C(~1.5 hr)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67 Housing \/ IP-68 Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSpare Probe Heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eElectrolyte Solution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\n\u003cp\u003e√\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":44175117517024,"sku":"860055","price":333.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable-860055-313971.jpg?v=1752691883"},{"product_id":"optical-dissolved-oxygen-meter","title":"Optical Dissolved Oxygen Meter","description":"\u003ch1 class=\"p1\"\u003eThe Sper Scientific Optical Dissolved Oxygen (DO) Meter is an ideal tool for low-maintenance dissolved oxygen measurement.\u003c\/h1\u003e\n\u003cp class=\"p1\"\u003eIt delivers accurate results even in low oxygen ranges and remains unaffected by acid gases, ensuring reliable performance in challenging environments. With no polarization time or probe maintenance required, this DO meter offers unparalleled ease of use.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003eThe large, easy-to-read LCD screen simultaneously displays both dissolved oxygen and temperature, with the flexibility to choose between % and mg\/L units for DO measurements. Equipped with built-in automatic temperature compensation (°C\/°F), the device also supports manual salinity and pressure compensation for enhanced precision. Additionally, 2-point DO calibration is available, further ensuring accurate measurements every time.\u003c\/p\u003e\n\u003cp class=\"p1\"\u003ePerfect for professionals who need efficient and reliable DO monitoring without the hassle of frequent upkeep.\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li2\"\u003eGreat for low maintenance D.O. measuring work\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eRemain accurate in low oxygen range and won’t be affected by acid gases\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eNo polarization time and no probe maintenance work\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eLarge LCD with D.O. \u0026amp; Temperature Display\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eSelectable % and mg\/L unit for D.O. Value\u003c\/li\u003e\n\u003cli class=\"li2\"\u003e°C\/°F Automatic Temperature Compensation Built-in\u003c\/li\u003e\n\u003cli class=\"li2\"\u003eManual Salinity and Manual Pressure Compensation\u003c\/li\u003e\n\u003cli class=\"li2\"\u003e2 Points D.O. Calibration Available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p5\"\u003e\u003cstrong\u003eThe Optical DO Meter's precision and low maintenance design make it a highly versatile tool for a variety of industries:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eAquaculture\u003c\/b\u003e: The Optical DO Meter ensures optimal conditions for fish and other aquatic organisms, with fisheries and aquaculture farms using it to maintain the health of aquatic life.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eEnvironmental Monitoring\u003c\/b\u003e: The Optical DO Meter is used for measuring dissolved oxygen in rivers, lakes, and oceans to assess water quality.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003ePharmaceuticals\u003c\/b\u003e: In bioreactors, precise DO control is necessary for cell culture growth.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eFood and Beverage\u003c\/b\u003e: Especially important for those involved in brewing beer or fermenting other products.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eWastewater Treatment\u003c\/b\u003e: The Optical DO Meter monitors the DO value during the treatment process, which is crucial for the breakdown of biological waste.\u003c\/li\u003e\n\u003cli class=\"li5\"\u003e\n\u003cb\u003eBrewing and Fermentation\u003c\/b\u003e: The Optical DO Meter controls oxygen levels during fermentation, affecting the taste and quality of the final product.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eComplete Kit Includes: Meter, Optical D.O. Probe, \u003cmeta charset=\"utf-8\"\u003e(6) AAA batteries, Hard Carry Case and Instructions.\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable cellspacing=\"0\" cellpadding=\"0\" class=\"t1\" style=\"width: 100.091%;\" height=\"1164\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td1\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eModel\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td2\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e860067\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.0%~200.0%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Accuracy of % Scale\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e\u003cspan class=\"s2\"\u003e±3% of Full Scale\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.1%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td9\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td10\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e\u003cspan class=\"s3\"\u003e0.0 \u003c\/span\u003e\u003cspan class=\"s2\"\u003emg\/L\u003c\/span\u003e\u003cspan class=\"s3\"\u003e~20.0 \u003c\/span\u003e\u003cspan class=\"s2\"\u003emg\/L\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 71.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td11\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td12\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e＜5mg\/L: ±0.3 mg\/L\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e5~20 mg\/L: ±0.4 mg\/L\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e\u003cspan class=\"s2\"\u003e0.1 mg\/L\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eTemperature Measuring Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0~40.0℃ (32~104°F)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eTemperature Accuracy\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e±0.5℃ (0.9)°F\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eTemperature Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.1℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eAuto Temp. Compensation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.0~40.0℃ (32~104°F)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eManual Compensation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eIncluded\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td9\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eSalinity Adjustable Range\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td10\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.0~55.0 ppt\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eSalinity Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.1 ppt\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 71.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td13\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eBarometric Pressure\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td14\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eManual Compensation\u003c\/p\u003e\n\u003cp class=\"p3\"\u003e50.0~115.0 Kpa\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eBarometric Pressure Resolution\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.1 Kpa\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eDO Calibration Points\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0.0% and 100%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eLCD Size\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e54 (L)*32.5 (W) mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td9\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eOperating Temperature\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td10\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0~50℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eOperating RH%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eHumidity ＜85%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eStorage Temperature\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e0~50℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td3\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eStorage RH%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td4\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eHumidity ＜80%\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 55.1875px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eSensor Life Time\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e\u0026gt;1 year (with proper maintenance)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eMeter Size\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e169(L) * 78.3(W) * 43.4(H) mm\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td9\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eWeight\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td10\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003e~400g\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td7\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p3\"\u003eBattery\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td8\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p3\"\u003eAAA *6 PCS\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 35.5938px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td5\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p4\"\u003ePower Consumption\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td6\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p4\"\u003e10 hours operation\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 74.7812px;\"\u003e\n\u003ctd valign=\"middle\" class=\"td15\" style=\"width: 44.9909%;\"\u003e\n\u003cp class=\"p4\"\u003eKit Includes\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" class=\"td16\" style=\"width: 55.0091%;\"\u003e\n\u003cp class=\"p4\"\u003eMeter, Optical D.O. Probe, (6) AAA batteries, Hard Carry Case, Manual\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003c!----\u003e\u003c\/p\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BTM-4208SD-i.pdf\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Optical DO Meter Instructions\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067-i.pdf\" target=\"_blank\"\u003e\u003cimg alt=\"PDF\" style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\"\u003e\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BTM-4208SD-i.pdf\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Optical DO Meter Instructions\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067-i.pdf\" target=\"_blank\"\u003eUsers Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cbr\u003e  \u003ca rel=\"noopener\" title=\"Optical DO Meter Brochure\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067_Brochure.pdf\" target=\"_blank\"\u003e\u003cimg alt=\"PDF\" style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/BTM-4208SD-i.pdf\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Optical DO Meter Instructions\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067-i.pdf\" target=\"_blank\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Optical DO Meter Brochure\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860067_Brochure.pdf\" target=\"_blank\"\u003eProduct Brochure\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ch4 style=\"text-align: left;\"\u003eComparison Chart\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ch2 style=\"text-align: center;\"\u003eCompare Sper Scientific Dissolved Oxygen (DO) Meters\u003c\/h2\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; height: 1455.1875px;\"\u003e\n\u003c!-- IMAGE ROW --\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 141px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 141px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cimg style=\"display: block; margin-left: auto; margin-right: auto;\" alt=\"Waterproof Dissolved Oxygen Meter Pen - Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Waterproof-Dissolved-Oxygen-Meter-Pen-525408.jpg?v=1752691879\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 141px;\" align=\"center\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" target=\"_blank\"\u003e\u003cimg alt=\"Combination Water Meter Kit with pH Probe | Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Combination-Water-Meter-Kit-with-pH-Probe.jpg?v=1752691876\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 141px;\" align=\"center\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cimg alt=\"Dissolved Oxygen Meter Kit | Sper Scientific Direct\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Dissolved-Oxygen-Meter-Kit-718738.jpg?v=1752691873\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\n\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Rechargeable dissolved oxygen pen with 5 meter cable by Sper Scientific featuring a digital display.\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable-860055-313971.jpg?v=1752691883\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Optical Dissolved Oxygen Meter 1\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/optical-dissolved-oxygen-meter-860067-101931.jpg?v=1752691897\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 141px;\" align=\"center\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"Portable DO Meter and Sensor\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/portable-optical-dissolved-oxygen-meter-860073-479959.jpg?v=1752691863\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- HEADER --\u003e\n\u003ctr style=\"background: rgb(40, 113, 232); color: rgb(255, 255, 255); height: 18px;\"\u003e\n\u003cth style=\"width: 17.005908%; height: 18px;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e850045\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" style=\"color: rgb(255, 255, 255);\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850048DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850081DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860055\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" style=\"color: rgb(255, 255, 255);\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860067\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e\u003ca style=\"color: rgb(255, 255, 255); text-decoration: underline;\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e860073\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 90px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 90px;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cstrong\u003eWaterproof DO Meter Pen\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" target=\"_blank\"\u003eCombination Water Meter Kit w\/ DO Probe\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" target=\"_blank\"\u003e\u003cstrong\u003eDissolved Oxygen Meter Kit\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eRechargeable DO Pen w\/ 5 Meter Cable\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eOptical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003ePortable Optical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (% Saturation)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–100% O₂ in air\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–200%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–100.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–199.9%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–200.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0-200%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.00–20.00 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0 -20 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eDO Accuracy (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u0026lt;5: ±0.3 mg\/L≥5: ±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.3mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Accuracy (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±2% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% of Full Scale\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Range\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50.0°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40.0°C \/ 32–104°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0°–45°C \/ 32°–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Accuracy\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.8°C \/ 1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.8°C \/ ±1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C (0.9°F)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eAuto Temp. Comp. (ATC)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e10–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSalinity Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBarometric Pressure Comp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e500–760 mmHg(66.7–101.3 kPa)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual, 50–115 kPa\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Calibration\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Button (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (100% air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eProbe Technology\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Warmup Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;60 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eNone\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~10 min (cal.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Response Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;30 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eFast\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor\/Probe Lifetime\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;6 months\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures pH\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures ORP \/ mV\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Conductivity\/TDS\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Salinity\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eMemory \/ Data Storage\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eMax\/Min record\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e+100,000 memory points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eRS232 \/ Data Output\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eRS232\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDisplay Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eDual LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eLarge backlit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSimultaneous DO \u0026amp; Temp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18.1875px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 18.1875px;\"\u003eBacklight\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBattery Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e9V\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e3.7V 500mAh Rechargeable Li-ion\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(6) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eRechargeable Li-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eCharging\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB Type-C(~1.5 hr)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67 Housing \/ IP-68 Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSpare Probe Heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eElectrolyte Solution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003cbr\u003e\u003cstrong\u003e\u003c\/strong\u003e\n\u003c\/div\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":46201641402592,"sku":"860067","price":688.85,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/optical-dissolved-oxygen-meter-860067-101931.jpg?v=1787942259"},{"product_id":"industrial-dissolved-oxygen-meter","title":"Online Industrial Dissolved Oxygen Meter","description":"\u003ch1\u003eInline Dissolved Oxygen Analyzer is designed for continuous, real-time DO monitoring across a wide range of industrial processes.\u003c\/h1\u003e\n\u003cp\u003eBuilt with a rugged yet straightforward design, the industrial dissolved oxygen probes deliver precise measurements in any process condition. Ideal for industries like pharmaceuticals, food and beverage, chemicals, power, microelectronics and clean water applications, this system ensures reliable dissolved oxygen monitoring.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEfficient and easy-to-service dissolved oxygen measurement\u003c\/li\u003e\n\u003cli\u003eMeasures dissolved oxygen levels from ppb to ppm\u003c\/li\u003e\n\u003cli\u003eFast response time, even at ppb levels\u003c\/li\u003e\n\u003cli\u003eDurable, hygienic design for continuous online monitoring\u003c\/li\u003e\n\u003cli\u003eUser-friendly operation with an intuitive interface\u003c\/li\u003e\n\u003cli\u003eLower overall cost per measurement point\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eOrdering Notes: \u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e1. ALL SPER ONLINE WATER QUALITY METERS AND SENSORS ARE SOLD SEPARATELY - Please be sure to add the appropriate sensor (listed above) when purchasing your meter - ONE METER AND SENSOR are required for a complete system. \u003c\/span\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e2. All Inline Water Quality Meters and Sensors ship direct from the factory. Please allow 10-15 business days for shipping and \u003cspan style=\"caret-color: rgb(255, 42, 0);\"\u003ehandling\u003c\/span\u003e. \u003c\/span\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cbr\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable data-sort=\"sortDisabled\" class=\"table table-bordered table-hover\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\" rowspan=\"1\"\u003e\n\u003cp\u003e\u003cstrong\u003eSper #870007 Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMeasurement\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"272\" colspan=\"2\" rowspan=\"1\"\u003e\u003cspan\u003eDissolved Oxygen, Temperature\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDO Range\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd valign=\"middle\" align=\"center\" width=\"257\" colspan=\"2\" rowspan=\"1\"\u003e\n\u003cp\u003e0.00~20.00 ug\/L \u003c\/p\u003e\n\u003cp\u003e0.00mg\/L~20.00 mg\/L \u003c\/p\u003e\n\u003cp\u003e0.00%~200.00 % \u003c\/p\u003e\n\u003cp\u003e-10.0℃~130.0℃ \u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\" colspan=\"1\" rowspan=\"1\"\u003e\u003cspan\u003e\u003cstrong\u003eAccuracy\u003c\/strong\u003e\u003cstrong\u003e\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\" rowspan=\"1\"\u003e\u003cspan\u003e1%,  ±0.2℃\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eHousing Material\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cspan\u003eABS Flame retardant: V0\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003ePower\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cspan\u003e90 – 260V AC 50\/60Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eConsumption\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cspan\u003e4W\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eOutput\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cspan\u003eTwo ways 4-20mA output\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\" rowspan=\"1\" colspan=\"1\"\u003e\u003cspan\u003e\u003cstrong\u003eCommunication\u003c\/strong\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"257\" rowspan=\"1\" colspan=\"2\"\u003e\u003cspan\u003eRS485 Modbus\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eRelay\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cspan\u003eTwo relays, 5A\/250V AC, 5A\/30V DC\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eTemperature.Comp\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cspan\u003ePT1000 \/ NTC10K \/ 22K\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"79\" rowspan=\"1\" colspan=\"1\"\u003e\u003cstrong\u003eDimension\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"257\" rowspan=\"1\" colspan=\"2\"\u003e\u003cspan\u003e144×144×104mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"79\" rowspan=\"1\" colspan=\"1\"\u003e\u003cstrong\u003eHole size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd width=\"257\" rowspan=\"1\" colspan=\"2\"\u003e138*138mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eProtection\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\"\u003e\u003cspan\u003eIP65\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eLanguage\u003c\/strong\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cspan\u003eEnglish \/ 简体中文\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"220\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"257\" colspan=\"2\"\u003e\n\u003cp\u003e\u003cspan\u003ePanel \/ Wall \/ Pipe mounted\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Inline Industrial Dissolved Oxygen Sensor - Users Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/870007_Industrial_DO_Meter_Manual.pdf\" target=\"_blank\"\u003e\u003cimg style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" alt=\"PDF\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Inline Industrial Dissolved Oxygen Sensor - Users Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/870007_Industrial_DO_Meter_Manual.pdf\" target=\"_blank\"\u003eInstruction Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":46246435455200,"sku":"870007","price":786.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/inline-digital-optical-dissolved-oxygen-meter-870006-203770.jpg?v=1752691908"},{"product_id":"digital-optical-dissolved-oxygen-meter","title":"Online Digital Optical Dissolved Oxygen Meter","description":"\u003cp\u003e\u003cb\u003eOrdering Notes:\u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e1. ALL SPER ONLINE WATER QUALITY METERS AND SENSORS ARE SOLD SEPARATELY - Please be sure to add the appropriate sensor (listed above) when purchasing your meter - ONE METER AND SENSOR are required for a complete system. \u003c\/span\u003e\u003cbr\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e2. All Inline Water Quality Meters and Sensors ship direct from the factory. Please allow 10-15 business days for shipping and \u003cspan style=\"caret-color: rgb(255, 42, 0);\"\u003ehandling\u003c\/span\u003e. \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003chr\u003e\n\u003ch1 class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eSper Scientific Inline Digital Optical Dissolved Oxygen Meter features an advanced sensor designed for precise, real-time measurement of dissolved oxygen and temperature in a variety of applications. \u003c\/span\u003e\u003c\/h1\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eEngineered for durability and minimal maintenance, this meter is ideal for harsh environments. This Digital Optical Dissolved Oxygen Meter is an essential tool for ensuring optimal water quality and effective monitoring across various industries, enhancing operational efficiency and compliance with environmental standards. \u003c\/span\u003e\u003cspan class=\"s1\"\u003eEngineered for durability and maintenance-free operation, it features innovative light source technology that ensures a long service life while reducing operational costs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eThis meter offers dual 4-20mA output options for seamless integration into existing systems, providing real-time data for both dissolved oxygen and temperature. With a built-in data recording function, users can easily access historical data and trends for effective monitoring.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eDesigned for versatile installation, the meter can be panel-mounted, wall-mounted, or pipe-mounted. It incorporates RS485 Modbus RTU communication for straightforward digital integration. Additionally, the device includes three relay outputs: two for high and low limit alarms and one for clean time settings.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p1\"\u003e\u003cspan class=\"s1\"\u003eIdeal for applications in industrial wastewater, drinking water, pulp and paper processing and the chemical industry, this optical dissolved oxygen meter ensures optimal water quality and compliance across various treatment processes.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"p2\"\u003e\u003cspan class=\"s1\"\u003eDissolved oxygen (DO) is the oxygen present in water, essential for the survival of fish, invertebrates, and microorganisms. Measured in milligrams per liter (mg\/L), DO levels are influenced by factors like temperature, pressure, salinity, and organic matter. Adequate dissolved oxygen is crucial for healthy aquatic ecosystems; low levels can cause hypoxia, harming aquatic life. Regular monitoring of DO is important for maintaining water quality in natural bodies of water and wastewater treatment.\u003c\/span\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul class=\"ul1\"\u003e\n\u003cli class=\"li1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eHigh Precision Measurement\u003c\/b\u003e: Utilizes cutting-edge optical technology for accurate and reliable dissolved oxygen readings.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eRobust Design\u003c\/b\u003e: Suitable for challenging applications, the sensor boasts a long operational lifespan thanks to innovative light source technology.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eFlexible Output Options\u003c\/b\u003e: Provides dual 4-20mA outputs for both dissolved oxygen and temperature measurements, ensuring compatibility with various systems.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eData Recording Capability\u003c\/b\u003e: Equipped with a built-in data logger, allowing users to easily access historical data and view trends via history curves.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eMounting Versatility\u003c\/b\u003e: Can be panel-mounted, wall-mounted, or pipe-mounted, providing flexibility for installation in different environments.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eRS485 Modbus Communication\u003c\/b\u003e: Direct integration with digital systems through RS485 Modbus RTU, facilitating easy data transmission and system integration.\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"li1\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eRelay Outputs\u003c\/b\u003e: Features three relay outputs—two configurable for high and low limit alarms and one for clean time settings.\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp class=\"p4\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eApplications\u003c\/b\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli class=\"p4\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eIndustrial Wastewater Treatment\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli class=\"p4\"\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eDrinking Water Quality Monitoring\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003ePulp and Paper Processing\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eChemical Industry Applications\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003eGeneral Water and Wastewater Treatment\u003c\/b\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003e\n\u003cspan class=\"s1\"\u003e\u003cb\u003eSpecifications\u003cbr\u003e\u003c\/b\u003e\u003c\/span\u003e\u003cspan class=\"s1\"\u003e\u003cb\u003e\u003c\/b\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003ctable data-sort=\"sortDisabled\" class=\"table table-bordered table-hover\" height=\"1086\" style=\"width: 73.3878%;\"\u003e\n\u003ctbody\u003e\n\u003ctr class=\"firstRow\"\u003e\n\u003ctd rowspan=\"1\" colspan=\"1\" style=\"width: 33.9378%;\"\u003e\u003cstrong\u003eProduct\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd rowspan=\"1\" colspan=\"2\" style=\"width: 64.5408%;\"\u003e\n\u003cstrong\u003eInline Digital Dissolved Oxygen Meter\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eFunction\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" rowspan=\"1\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e\u003cspan\u003eOnline measure dissolved oxygen and temperature\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eSensor Type\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" rowspan=\"1\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eWith Digital Dissolved Oxyen Sensor\u003c\/p\u003e\n\u003cp\u003e( Sensor with RS485 Modbus )\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eMeasure Range\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" rowspan=\"1\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e0~20.00 mg\/L\u003c\/p\u003e\n\u003cp\u003e0~200.00 %\u003c\/p\u003e\n\u003cp\u003e-10.0~100.0℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eAccuracy\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" rowspan=\"1\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e±1%FS\u003c\/p\u003e\n\u003cp\u003e±0.5℃\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003ePower Supply\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e\u003cspan\u003e90 – 260V AC 50\/60Hz\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eHousing Material\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e\u003cspan\u003eABS\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCommunication\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e\u003cspan\u003eRS485 Modbus\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eData Recording Function\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 64.5408%;\"\u003eYes\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eProtection\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e\u003cspan\u003eIP65\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eCurrent output\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003eIsolated type \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e2 ways of 4-20mA output \u003c\/p\u003e\n\u003cp\u003e(dissolved oxygen.temperature)\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eRelay\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003eTwo relays for high and low limit\u003c\/p\u003e\n\u003cp\u003eOne relay for clean\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eOverall Dimensions\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e\u003cspan\u003e144×144×104mm\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd rowspan=\"1\" colspan=\"1\" style=\"width: 33.9378%;\"\u003e\u003cstrong\u003eHole size\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd rowspan=\"1\" colspan=\"2\" style=\"width: 64.5408%;\"\u003e138×138mm\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd style=\"width: 33.9378%;\"\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan\u003eInstallation\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd colspan=\"2\" style=\"width: 64.5408%;\"\u003e\n\u003cp\u003e\u003cspan\u003ePanel, Wall or Pipe mounted\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Inline Digital DO Meter - Users Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/870006_Digital_DO_Meter_Manual.pdf\" target=\"_blank\"\u003e\u003cimg style=\"float: left;\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" alt=\"PDF\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Inline Digital DO Meter - Users Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/870006_Digital_DO_Meter_Manual.pdf\" target=\"_blank\"\u003eInstruction Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":46246435520736,"sku":"870006","price":903.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/inline-digital-optical-dissolved-oxygen-meter-870006-312466.jpg?v=1752691908"},{"product_id":"high-temperature-dissolved-oxygen-sensor","title":"Online High Temperature Dissolved Oxygen Sensor","description":"\u003ch1\u003eThe Online High Temperature Dissolved Oxygen Sensor is designed to withstand steam sterilization at temperatures up to 130°C, featuring an auto-balance pressure system for reliable dissolved oxygen (DO) measurements in both liquids and gases. \u003c\/h1\u003e\n\u003cp\u003eIdeal for small microbial culture reactors, this sensor enables real-time monitoring of dissolved oxygen levels and is also suited for environmental monitoring, wastewater treatment, and aquaculture applications.\u003c\/p\u003e\n\u003cp\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cspan\u003eMeasuring dissolved oxygen in water and treatment to maintain proper DO levels, are crucial functions in a variety of water treatment applications. While dissolved oxygen is necessary to support life and treatment processes, it can also be detrimental, causing oxidation that damages equipment and compromises product. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eThe DO concentration determines the quality of source water. Without enough DO, water turns foul and unhealthy, affecting the quality of the environment, drinking water and other products.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAbout Dissolved Oxygen\u003cbr\u003e\u003c\/strong\u003e Dissolved oxygen (DO) measures the amount of oxygen gas present in water, an essential indicator of water health. Water bodies that support life require adequate dissolved oxygen levels. DO enters water through:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDirect absorption from the atmosphere\u003c\/li\u003e\n\u003cli\u003eRapid water movement from winds, waves, currents, or mechanical aeration\u003c\/li\u003e\n\u003cli\u003ePhotosynthesis from aquatic plants as a natural by-product\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Temperature Electrode\u003c\/strong\u003e: High-temperature fermentation electrode, utilizing the polarographic principle.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHigh Quality Membrane\u003c\/strong\u003e: Equipped with imported, high-quality breathable membrane heads.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eDurable Construction\u003c\/strong\u003e: Steel gauze electrode membrane paired with silicone rubber construction.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHeat-resistant Design:\u003c\/strong\u003e Ensures stability and performance under high-temperature conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eCable Included\u003c\/strong\u003e: Includes a 5 meter VP cable.\u003cmeta charset=\"utf-8\"\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003e\u003cbr\u003eOrdering Notes: \u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e1. All Sper Online \u003ca title=\"Inline Water Quality Monitoring\" href=\"https:\/\/sperdirect.com\/collections\/inline-water-quality-monitors-sensors\"\u003eWater Quality Meters and Sensors\u003c\/a\u003e are sold separately - one of each is required for a complete system. \u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e2. All Online Water Quality Meters and Sensors ship direct from the factory. Please allow 10-15 business days for shipping and \u003cspan style=\"caret-color: rgb(255, 42, 0);\"\u003ehandling\u003c\/span\u003e. \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable border=\"0\" cellpadding=\"0\" cellspacing=\"0\" width=\"960\" style=\"border-collapse: collapse; width: 551px; height: 201px;\"\u003e\n\u003ccolgroup\u003e \u003ccol width=\"435\" style=\"width: 229.5px;\"\u003e \u003ccol width=\"525\" style=\"width: 320.5px;\"\u003e \u003c\/colgroup\u003e\n\u003ctbody\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" width=\"435\" style=\"height: 21.3281px; width: 326pt;\"\u003eElectrode body material:\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\n\u003c\/td\u003e\n\u003ctd width=\"525\" style=\"width: 394pt; height: 21.3281px;\"\u003eStainless steel\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 21.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003ePermeable membrane:\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 21.3281px;\"\u003eFluorine plastic, silicone, stainless steel wire mesh composite membrane.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 21.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eCathode:\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 21.3281px;\"\u003ePPlatinum wire\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 21.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eAnode:\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 21.3281px;\"\u003eSilver\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 21.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eElectrodes\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 21.3281px;\"\u003eBuilt-in temperature sensor: PT1000\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 21.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eThe response current in the air:\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 21.3281px;\"\u003eAbout 60nA\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 21.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eThe response current in a nitrogen atmosphere:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 21.3281px;\"\u003eLess than one percent response current of response in air.\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 21.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eElectrode response time:\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 21.3281px;\"\u003eAbout 60 seconds (up 95% response)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 39.1875px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 39.1875px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eElectrode Response Stability:\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 39.1875px;\"\u003eA constant oxygen partial pressure at a constant temperature environment, response current drift less than 3% per week\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 22.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 22.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eLiquid mixing flow to the electrode response:\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 22.3281px;\"\u003e3% or less (in water at room temperature)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 21.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003eElectrode Response Temperature Coefficient:\u003cspan style=\"mso-spacerun: yes;\"\u003e \u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 21.3281px;\"\u003e3% (greenhouse)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr height=\"21\" style=\"height: 21.3281px;\"\u003e\n\u003ctd height=\"21\" class=\"xl64\" style=\"height: 21.3281px;\"\u003e\u003cspan style=\"box-sizing: border-box; outline: 0px; font-variant-ligatures: normal; font-variant-caps: normal; orphans: 2; text-align: start; widows: 2; -webkit-text-stroke-width: 0px; text-decoration-thickness: initial; text-decoration-style: initial; text-decoration-color: initial;\"\u003e\u003cspan\u003eDimensions \u0026amp; Insertion Length\u003c\/span\u003e\u003cspan style=\"mso-spacerun: yes;\"\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd style=\"height: 21.3281px;\"\u003e\u003cspan\u003e2x120mm, 150mm, 225mm, 325mm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca title=\"Inline Hight Temp Dissolved Oxygen Sensor - Users Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/High_Temp_Dissolved_Oxygen_Sensor_User_Manual.pdf\"\u003e\u003cimg alt=\"PDF\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" style=\"float: left;\"\u003e\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Inline High Temp Dissolved Oxygen Sensor - Users Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/High_Temp_Dissolved_Oxygen_Sensor_User_Manual.pdf\" target=\"_blank\"\u003eInstruction Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/Sper_VP_wiring_diagram.pdf\" title=\"Online Dissolved Oxygen Sensor - VP Wiring Diagram\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg alt=\"PDF\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" style=\"float: left;\"\u003e\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/Sper_VP_wiring_diagram.pdf\" title=\"Online Dissolved Oxygen Sensor - VP Wiring Diagram\"\u003eVP Wiring Diagram\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003cbr\u003e\u003c\/strong\u003e\u003c\/div\u003e","brand":"Sper Scientific","offers":[{"title":"Select \u003e","offer_id":53640261140704,"sku":null,"price":1748.0,"currency_code":"USD","in_stock":true},{"title":"120mm | 870007-HDO\/VP6\/5M-120mm","offer_id":53640185413856,"sku":"870007-HDO\/VP6\/5M-120mm","price":1748.0,"currency_code":"USD","in_stock":true},{"title":"150mm | 870007-HDO\/VP6\/5M-150mm","offer_id":53640185446624,"sku":"870007-HDO\/VP6\/5M-150mm","price":1923.0,"currency_code":"USD","in_stock":true},{"title":"225mm | 870007-HDO-\/VP6\/5M-225mm","offer_id":53640185479392,"sku":"870007-HDO-\/VP6\/5M-225mm","price":2048.0,"currency_code":"USD","in_stock":true},{"title":"325mm | 870007-HDO-\/VP6\/5M-325mm","offer_id":53640185512160,"sku":"870007-HDO-\/VP6\/5M-325mm","price":2173.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/inline-high-temperature-dissolved-oxygen-sensor-870007-hdo-447273.jpg?v=1752691911"},{"product_id":"industrial-polarographic-dissolved-oxygen-sensor","title":"Online Industrial Polarographic Dissolved Oxygen Sensor","description":"\u003ch1\u003eThe Inline Industrial Polarographic Dissolved Oxygen Sensor features a significant upgrade from previous models, incorporating a grit mesh metal membrane instead of a traditional diaphragm.\u003c\/h1\u003e\n\u003cp\u003eThis enhancement provides increased stability and stress resistance, making it well-suited for harsher environments. It requires less maintenance and is ideal for continuous dissolved oxygen measurement in applications such as urban sewage treatment, industrial wastewater management, aquaculture and environmental monitoring.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEnhanced design with a grit mesh metal membrane for superior stability and stress resistance.\u003c\/li\u003e\n\u003cli\u003eSuitable for challenging environments with reduced maintenance needs.\u003c\/li\u003e\n\u003cli\u003eIdeal for continuous monitoring of dissolved oxygen in urban sewage, industrial wastewater treatment, aquaculture, and environmental monitoring.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eOrdering Notes: \u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e1. All Sper Inline \u003ca href=\"https:\/\/sperdirect.com\/collections\/inline-water-quality-monitors-sensors\" title=\"Inline Water Quality Monitoring\"\u003eWater Quality Meters and Sensors\u003c\/a\u003e are sold separately - one of each is required for a complete system. \u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e2. All Inline Water Quality Meters and Sensors ship direct from the factory. Please allow 10-15 business days for shipping and \u003cspan style=\"caret-color: rgb(255, 42, 0);\"\u003ehandling\u003c\/span\u003e. \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003cbr\u003e\n\u003c\/h4\u003e\n\u003ctable cellspacing=\"0\" border=\"0\" style=\"width: 82.1072%; height: 316px;\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"606\" valign=\"top\" colspan=\"2\" style=\"width: 100.001%; height: 19.5938px;\"\u003e\u003cspan\u003eUltra resistant to pressure (0.6M pa) wallop, imported (grit mesh metal membrane)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 55.0917%; height: 19.5938px;\"\u003e\u003cspan\u003eUp thread: M32 * 2.0\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 44.9097%; height: 19.5938px;\"\u003e\u003cspan\u003eMeasuring range: 0-20mg \/ L\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"606\" valign=\"top\" colspan=\"2\" style=\"width: 100.001%; height: 19.5938px;\"\u003e\u003cspan\u003eMeasuring principle: Current type sensor (polarographic electrode)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"606\" valign=\"top\" colspan=\"2\" style=\"width: 100.001%; height: 19.5938px;\"\u003e\u003cspan\u003eBreathable membrane thickness: 100μm\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"606\" valign=\"top\" colspan=\"2\" style=\"width: 100.001%; height: 19.5938px;\"\u003e\u003cspan\u003eElectrode shell material: PVC or 316L stainless steel\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"606\" valign=\"top\" colspan=\"2\" style=\"width: 100.001%; height: 19.5938px;\"\u003e\u003cspan\u003eTemperature compensation resistance: Pt100, Pt1000, 22K, 2.252K, etc.\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 55.0917%; height: 19.5938px;\"\u003e\u003cspan\u003eSensor life: \u0026gt; 2 years\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 44.9097%; height: 19.5938px;\"\u003e\u003cspan\u003eCable length: 5m\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 55.0917%; height: 19.5938px;\"\u003e\u003cspan\u003eDetection limit: 0.01 mg \/ L (20 ℃)  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 44.9097%; height: 19.5938px;\"\u003e\u003cspan\u003eMeasurement limit: 40 mg \/ L\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 55.0917%; height: 19.5938px;\"\u003e\u003cspan\u003eResponse time: 2min (90%, 20 ℃)\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 44.9097%; height: 19.5938px;\"\u003e\u003cspan\u003ePolarization time: 60min\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 55.0917%; height: 19.5938px;\"\u003e\u003cspan\u003eMinimum flow rate: 2.5cm \/ s\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 44.9097%; height: 19.5938px;\"\u003e\u003cspan\u003eDrift: \u0026lt;2% \/ month\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"606\" valign=\"top\" colspan=\"2\" style=\"width: 100.001%; height: 19.5938px;\"\u003e\u003cspan\u003eMeasurement error: \u0026lt;± 0.01 mg \/ L\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"606\" valign=\"top\" colspan=\"2\" style=\"width: 100.001%; height: 19.5938px;\"\u003e\u003cspan\u003eOutput Current: 50-80nA\/0.1 mg \/ L  Note: Maximum current 3.5uA\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 55.0917%; height: 19.5938px;\"\u003e\u003cspan\u003ePolarization voltage: 0.7V  \u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 44.9097%; height: 19.5938px;\"\u003e\u003cspan\u003eZero oxygen: \u0026lt;0.01 mg \/ L\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 55.0917%; height: 39.1875px;\"\u003e\u003cspan\u003eCalibration interval: \u0026gt; 60 days\u003c\/span\u003e\u003c\/td\u003e\n\u003ctd width=\"303\" valign=\"top\" style=\"width: 44.9097%; height: 39.1875px;\"\u003e\u003cspan\u003eMeasured water temperature: \u003cbr\u003e32 - 140º F (0-60℃)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Inline Industrial DO Sensor - Instruction Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/Industrial_Dissolved_Oxygen_Sensor_User_Manual.pdf\" target=\"_blank\"\u003e\u003cimg alt=\"PDF\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" style=\"float: left;\"\u003e\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Inline Industrial DO Sensor - Instruction Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/Industrial_Dissolved_Oxygen_Sensor_User_Manual.pdf\" target=\"_blank\"\u003eInstruction Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":46246435586272,"sku":"870007-DO","price":716.55,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/inline-industrial-polarographic-dissolved-oxygen-sensor-870007-do-554405.jpg?v=1752691865"},{"product_id":"optical-dissolved-oxygen-sensor","title":"Online Optical Dissolved Oxygen Sensor","description":"\u003ch1\u003eOur Inline Optical Dissolved Oxygen Sensor sensor uses advanced fluorescence technology for dissolved oxygen measurement.\u003c\/h1\u003e\n\u003cp\u003eThe sensor operates by emitting blue light onto a phosphor layer, exciting a fluorescent material that emits red light. The duration for the fluorescence to return to its ground state is inversely proportional to the oxygen concentration, enabling precise measurement without oxygen consumption. This method provides stable, reliable, and interference-free data, with simple installation and calibration.\u003c\/p\u003e\n\u003cp\u003eThis sensor is widely used for continuous dissolved oxygen monitoring in sewage treatment processes, water plants, surface water, industrial process water, wastewater treatment, aquaculture and more.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eKey Features:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEquipped with a new oxygen-sensitive film for exceptional reproducibility and stability\u003c\/li\u003e\n\u003cli\u003eInnovative fluorescence technology requires minimal maintenance.\u003c\/li\u003e\n\u003cli\u003eCustomizable maintenance reminders, triggered automatically.\u003c\/li\u003e\n\u003cli\u003eDurable, fully enclosed design enhances sensor longevity.\u003c\/li\u003e\n\u003cli\u003eSimple and reliable operation with intuitive interface instructions, minimizing errors.\u003c\/li\u003e\n\u003cli\u003eVisual warning system offers essential alarm functions.\u003c\/li\u003e\n\u003cli\u003eConvenient on-site installation with plug-and-play capability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cb\u003eOrdering Notes: \u003cbr\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e1. All Sper Inline \u003ca href=\"https:\/\/sperdirect.com\/collections\/inline-water-quality-monitors-sensors\" title=\"Inline Water Quality Monitoring\"\u003eWater Quality Meters and Sensors\u003c\/a\u003e are sold separately - one of each is required for a complete system. \u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003e\u003cspan\u003e\u003cspan style=\"color: #ff2a00;\"\u003e2. All Inline Water Quality Meters and Sensors ship direct from the factory. Please allow 10-15 business days for shipping and \u003cspan style=\"caret-color: rgb(255, 42, 0);\"\u003ehandling\u003c\/span\u003e. \u003c\/span\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003ctable style=\"width: 100.091%; height: 274.313px;\" border=\"1\" cellspacing=\"0\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 39.1875px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003eMaterial\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 39.1875px;\" valign=\"center\" width=\"634\"\u003e\n\u003cspan\u003eBody: SUS316L + PVC (Limited Edition), Titanium (seawater version); \u003c\/span\u003e\u003cspan\u003eO-ring: Vito; \u003c\/span\u003eCable: PVC\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 39.1875px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003e\u003cmeta charset=\"utf-8\"\u003eMeasurement Range\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 39.1875px;\" valign=\"center\" width=\"634\"\u003e\n\u003cspan\u003eDissolved oxygen: 0-20 mg\/; 0-20 ppm; \u003c\/span\u003e\u003cspan\u003eTemperature: 32º-113\u003cmeta charset=\"utf-8\"\u003eºF (0\u003cmeta charset=\"utf-8\"\u003eº-45℃)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 39.1875px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 39.1875px;\" valign=\"center\" width=\"217\"\u003e\n\u003cstrong\u003e\u003cspan\u003eMeasurement A\u003c\/span\u003e\u003c\/strong\u003e\u003cstrong\u003e\u003cspan\u003eccuracy\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 39.1875px;\" valign=\"center\" width=\"634\"\u003e\n\u003cspan\u003eDissolved oxygen: measured value ±3%; \u003c\/span\u003e\u003cspan\u003eTemperature: ±33\u003cmeta charset=\"utf-8\"\u003eºF (0.5℃)\u003c\/span\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 19.5938px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003ePressure Range\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 19.5938px;\" valign=\"center\" width=\"634\"\u003e\u003cspan\u003e≤0.3Mpa\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 19.5938px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003eOutput\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 19.5938px;\" valign=\"center\" width=\"634\"\u003e\u003cspan\u003eMODBUS RS485\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 19.5938px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003eStorage Temperature\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 19.5938px;\" valign=\"center\" width=\"634\"\u003e\u003cspan\u003e5\u003cmeta charset=\"utf-8\"\u003eº~149ºF (-15\u003cmeta charset=\"utf-8\"\u003eº~65℃)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 19.5938px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003eAmbient \u003cmeta charset=\"utf-8\"\u003eTemperature\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 19.5938px;\" valign=\"center\" width=\"634\"\u003e\u003cspan\u003e32\u003cmeta charset=\"utf-8\"\u003eº\u003cmeta charset=\"utf-8\"\u003e~113\u003cmeta charset=\"utf-8\"\u003eºF (0~45℃)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 19.5938px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003eCalibration\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 19.5938px;\" valign=\"center\" width=\"634\"\u003e\u003cspan\u003eAir automatic calibration, sample calibration\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 19.5938px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003eCable\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 19.5938px;\" valign=\"center\" width=\"634\"\u003e\u003cspan\u003e10m\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 19.5938px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003eSize\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 19.5938px;\" valign=\"center\" width=\"634\"\u003e\u003cspan\u003e2.17x13.5 inches (55mmx342mm)\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 19.5938px;\"\u003e\n\u003ctd style=\"width: 39.5258%; height: 19.5938px;\" valign=\"center\" width=\"217\"\u003e\u003cstrong\u003e\u003cspan\u003eWaterproof Rating\u003c\/span\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 60.4742%; height: 19.5938px;\" valign=\"center\" width=\"634\"\u003e\u003cspan\u003eIP68\/NEMA6P\u003c\/span\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch4\u003eDownloads\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e \u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Inline Optical DO Sensor - Users Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/Optical_DO_Sensor_User_Manual.pdf\" target=\"_blank\"\u003e\u003cimg alt=\"PDF\" src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" style=\"float: left;\"\u003e\u003c\/a\u003e \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860031-33-i.pdf?v=1598908093\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Inline Optical DO Sensor - Users Manual\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/Optical_DO_Sensor_User_Manual.pdf\" target=\"_blank\"\u003eInstruction Manual\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":46246435619040,"sku":"870006-ODO","price":2023.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/inline-optical-dissolved-oxygen-sensor-870006-odo-810063.jpg?v=1752691908"},{"product_id":"dissolved-oxygen-test-kit-1-12-ppm","title":"Dissolved Oxygen Test Kit (1-12 ppm)","description":"\u003cdiv class=\"grid12-12 module-product-details__title\"\u003e\n\u003cdiv class=\"product-name\"\u003e\n\u003ch1\u003eDissolved Oxygen Test Kit (1-12 ppm)\u003c\/h1\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid12-12 module-product-details__sage\"\u003e\n\u003cdiv class=\"product-custom-fields\"\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Single Parameter\u003cbr\u003e\u003cstrong\u003eTest Method:\u003c\/strong\u003e CHEMets\u003cbr\u003e\u003cstrong\u003eAnalyte\/Chemical:\u003c\/strong\u003e Oxygen, Dissolved\u003cbr\u003e\u003cstrong\u003eRange:\u003c\/strong\u003e 1-12 ppm\u003cbr\u003e\u003cstrong\u003eMDL:\u003c\/strong\u003e 1 ppm\u003cbr\u003e\u003cstrong\u003eMethod:\u003c\/strong\u003e Indigo Carmine\u003cbr\u003e\u003cmeta charset=\"utf-8\"\u003e\u003cstrong\u003eDissolved Oxygen Analysis Time:\u003c\/strong\u003e\u003cspan\u003e 2 minutes\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid12-12 module-product-details__desc\"\u003e\n\u003cdiv class=\"short-description\"\u003e\n\u003cdiv class=\"std secondary-desc\"\u003e\n\u003cp\u003e\u003cspan\u003eDissolved oxygen test kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Comparator, 25 mL sample cup and instructions.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch4\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eNOTE: PLEASE ALLOW 2-3 DAYS FOR PACKING AND SHIPPING ON ALL TEST STRIPS AND KITS. \u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/h4\u003e\n\u003ch4\u003eVideos\u003c\/h4\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/r45dGkDHEGU?modestbranding=1\u0026amp;rel=0\u0026amp;cc_load_policy=1\u0026amp;fs=0\u0026amp;color=white\" width=\"500\" height=\"315\" title=\"A YouTube video\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"CHEMetrics","offers":[{"title":"Default Title","offer_id":47074155004128,"sku":"SPSK-7512","price":84.53,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/dissolved-oxygen-test-kit-1-12-ppm-spsk-7512-375992.png?v=1741944810"},{"product_id":"oxygen-dissolved-0-1ppm","title":"Dissolved Oxygen Test Kit (0-1ppm)","description":"\u003ch1\u003eDissolved Oxygen Test Kit (0-1 ppm)\u003c\/h1\u003e\n\u003cp\u003e\u003cspan\u003eOur 0-1 ppm Dissolved Oxygen Test Kit comes in a plastic case and contains everything needed to perform 30 tests: Refill, Comparator, permanent mounting clamp, sampling tube, 25 mL sample cup and instructions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cdiv class=\"grid12-12 module-product-details__sage\"\u003e\n\u003cdiv class=\"product-custom-fields\"\u003e\n\u003cp\u003e\u003cstrong\u003eProduct Type:\u003c\/strong\u003e Single Parameter\u003cbr\u003e\u003cstrong\u003eTest Method:\u003c\/strong\u003e CHEMets\u003cbr\u003e\u003cstrong\u003eAnalyte\/Chemical:\u003c\/strong\u003e Oxygen, Dissolved\u003cbr\u003e\u003cstrong\u003eRange:\u003c\/strong\u003e 0-1 ppm\u003cbr\u003e\u003cstrong\u003eMDL:\u003c\/strong\u003e 0.025 ppm\u003cbr\u003e\u003cstrong\u003eMethod:\u003c\/strong\u003e Rhodazine D\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cspan style=\"color: rgb(255, 42, 0);\"\u003e\u003cstrong\u003eNOTE: PLEASE ALLOW 2-3 DAYS FOR PACKING AND SHIPPING ON ALL TEST STRIPS AND KITS. \u003c\/strong\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"grid12-12 module-product-details__desc\"\u003e\n\u003cdiv class=\"short-description\"\u003e\n\u003cdiv class=\"std secondary-desc\"\u003e\n\u003ch4\u003eVideos\u003c\/h4\u003e\n\u003ciframe src=\"https:\/\/www.youtube.com\/embed\/r45dGkDHEGU?modestbranding=1\u0026amp;rel=0\u0026amp;cc_load_policy=1\u0026amp;fs=0\u0026amp;color=white\" width=\"500\" height=\"315\" title=\"Dissolved Oxygen Testing\"\u003e\u003c\/iframe\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"CHEMetrics","offers":[{"title":"Default Title","offer_id":47074155036896,"sku":"SPSK-7501","price":92.98,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/dissolved-oxygen-test-kit-0-1ppm-spsk-7501-327424.png?v=1741944809"},{"product_id":"portable-optical-dissolved-oxygen-meter","title":"Portable Optical Dissolved Oxygen Meter","description":"\u003ch1\u003eThe Portable Optical Dissolved Oxygen Meter features a handheld unit paired with a fluorescent sensor that eliminates the need for membranes and electrolytes.\u003c\/h1\u003e\n\u003cp\u003eUtilizing advanced fluorescence technology, it measures dissolved oxygen without consuming oxygen or requiring water flow or agitation. Its built-in NTC temperature compensation ensures precise and stable readings with excellent repeatability. Designed for minimal maintenance, this optical sensor provides reliable performance ideal for professional environmental and laboratory applications.\u003c\/p\u003e\n\u003cp class=\"MsoNormal\" align=\"left\"\u003e\u003cb\u003e\u003cspan lang=\"ZH-CN\"\u003eApplications\u003c\/span\u003e\u003c\/b\u003e\u003cb\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/b\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eThe device features an IP67-rated housing for robust protection against dust and water ingress.\u003c\/li\u003e\n\u003cli\u003eEquipped with a 3.5-inch color display, it offers an intuitive interface for straightforward and efficient operation. \u003c\/li\u003e\n\u003cli\u003eErgonomically contoured for comfortable handheld use, it includes a rubberized, non-slip strap to ensure secure grip even in wet conditions. \u003c\/li\u003e\n\u003cli\u003eSupports data storage with easy export capabilities via a USB connection. \u003c\/li\u003e\n\u003cli\u003eContains a built-in rechargeable battery that charges conveniently through USB without battery removal. \u003c\/li\u003e\n\u003cli\u003eAutomatically detects the connected sensor type and adjusts the display interface accordingly. \u003c\/li\u003e\n\u003cli\u003eAllows full sensor parameterization and calibration for precise measurement customization.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eSpecifications\u003cspan\u003e\u003c\/span\u003e\n\u003c\/h4\u003e\n\u003cdiv align=\"center\"\u003e\n\u003cdiv align=\"center\"\u003e\n\u003ctable width=\"643\" cellpadding=\"0\" cellspacing=\"0\" border=\"1\" class=\"MsoNormalTable\"\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eMeasuring Range\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eDO\u003c\/span\u003e\u003cspan lang=\"ZH-CN\"\u003e：\u003c\/span\u003e\u003cspan\u003e0 -20 mg\/L\u003c\/span\u003e\u003cspan lang=\"ZH-CN\"\u003e；\u003c\/span\u003e\u003cspan\u003e0-20 ppm\u003c\/span\u003e\u003cspan lang=\"ZH-CN\"\u003e；\u003c\/span\u003e\u003cspan\u003e0-200%\u003cbr\u003e\u003c\/span\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003cspan lang=\"ZH-CN\"\u003e：\u003c\/span\u003e\u003cspan\u003e0-40℃\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eMeasurement Accuracy\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eDO\u003c\/span\u003e\u003cspan lang=\"ZH-CN\"\u003e：\u003c\/span\u003e\u003cspan\u003e3% or ±0.3mg\/l(take max)\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eTemperature\u003c\/span\u003e\u003cspan lang=\"ZH-CN\"\u003e：\u003c\/span\u003e\u003cspan\u003e±0.5℃\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eResolution\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e0.01mg\/L\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eCalibration\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eAir automatic calibration, sample calibration\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eHousing Material\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eSensor\u003c\/span\u003e\u003cspan lang=\"ZH-CN\"\u003e：\u003c\/span\u003e\u003cspan\u003eSUS\u003c\/span\u003e\u003cspan\u003e316L\u003c\/span\u003e\u003cspan\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eHost housing\u003c\/span\u003e\u003cspan lang=\"ZH-CN\"\u003e：\u003c\/span\u003e\u003cspan\u003eABS+PC\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eStorage Temp.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e-15-60℃\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eOperating Temp.\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e0-45℃\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eSize \u0026amp; Weight\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eSensor Size: 25mm * 127mm weight: \u0026lt;0.3KG\u003c\/span\u003e\u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eHost size: 203*100*43mm, weight: 0.5KG\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eProtection Level\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eSensor IP68  Host housing\u003c\/span\u003e\u003cspan lang=\"ZH-CN\"\u003e：\u003c\/span\u003e\u003cspan\u003eIP67\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eCable Length\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eStandard 3 meter cable (can be extended)\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eDisplay\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003e3.5-inch color display screen with adjustable backlight\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd width=\"153\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eData Storage\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd width=\"490\"\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003emore than 100,000 data points\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch4 class=\"p2\" style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/h4\u003e\n\u003ch4 class=\"p2\" style=\"text-align: left;\"\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eDownloads\u003c\/span\u003e\u003c\/h4\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003ca rel=\"noopener\" title=\"Portable Optical DO Meter Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860073_Portable_Optical_Dissolved_Oxygen_Meter_Datasheet.pdf\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" style=\"float: left;\" alt=\"PDF\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/cr8-e.pdf?v=1704924058\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" title=\"Portable Optical DO Meter Datasheet\" href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860073_Portable_Optical_Dissolved_Oxygen_Meter_Datasheet.pdf\" target=\"_blank\"\u003ePortable Optical DO Meter Datasheet\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/cr8-e.pdf?v=1704924058\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cstrong\u003e\u003c\/strong\u003e\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860073_Portable_Dissolved_Oxygen_Analyzer_Operation_Manual.pdf\" title=\"Portable Optical DO Users Manual\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/pdf-icon-63x63_480x480.png?v=1598991821\" style=\"float: left;\" alt=\"PDF\"\u003e \u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/cr8-e.pdf?v=1704924058\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/860073_Portable_Dissolved_Oxygen_Analyzer_Operation_Manual.pdf\" title=\"Portable Optical DO Meter Users Manual\" rel=\"noopener\" target=\"_blank\"\u003ePortable DO Users Manual\u003c\/a\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/cr8-e.pdf?v=1704924058\" target=\"_blank\"\u003e\u003cbr\u003e\u003c\/a\u003e\u003c\/strong\u003e\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cbr\u003e\n\u003c\/div\u003e\n\u003cdiv style=\"text-align: left;\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003ch4 style=\"text-align: left;\"\u003eComparison Chart\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ch2 style=\"text-align: center;\"\u003eCompare Sper Scientific Dissolved Oxygen (DO) Meters\u003c\/h2\u003e\n\u003csection style=\"max-width: 1400px; margin: 0 auto; padding: 40px 20px; font-family: Arial,sans-serif;\"\u003e\n\u003cdiv style=\"overflow-x: auto;\"\u003e\n\u003ctable style=\"width: 100%; border-collapse: collapse; font-size: 13px; height: 1455.1875px;\"\u003e\n\u003c!-- IMAGE ROW --\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 141px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 141px;\"\u003e\u003cbr\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Waterproof-Dissolved-Oxygen-Meter-Pen-525408.jpg?v=1752691879\" alt=\"Waterproof Dissolved Oxygen Meter Pen - Sper Scientific Direct\" style=\"display: block; margin-left: auto; margin-right: auto;\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.70379%; height: 141px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Combination-Water-Meter-Kit-with-pH-Probe.jpg?v=1752691876\" alt=\"Combination Water Meter Kit with pH Probe | Sper Scientific Direct\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.70379%; height: 141px;\"\u003e\n\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/Dissolved-Oxygen-Meter-Kit-718738.jpg?v=1752691873\" alt=\"Dissolved Oxygen Meter Kit | Sper Scientific Direct\"\u003e\u003c\/a\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\n\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable-860055-313971.jpg?v=1752691883\" alt=\"Rechargeable dissolved oxygen pen with 5 meter cable by Sper Scientific featuring a digital display.\"\u003e\u003c\/a\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003c\/a\u003e\n\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/optical-dissolved-oxygen-meter-860067-101931.jpg?v=1752691897\" alt=\"Optical Dissolved Oxygen Meter 1\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd align=\"center\" style=\"width: 13.868896%; height: 141px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cimg src=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/portable-optical-dissolved-oxygen-meter-860073-479959.jpg?v=1752691863\" alt=\"Portable DO Meter and Sensor\"\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c!-- HEADER --\u003e\n\u003ctr style=\"background: rgb(40, 113, 232); color: rgb(255, 255, 255); height: 18px;\"\u003e\n\u003cth style=\"width: 17.005908%; height: 18px;\"\u003eModel Number\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e850045\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" rel=\"noopener\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850048DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.70379%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" style=\"color: rgb(255, 255, 255);\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e850081DOK\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860055\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255);\"\u003e\u003ca rel=\"noopener\" style=\"color: rgb(255, 255, 255);\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e860067\u003c\/span\u003e\u003c\/a\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003cth style=\"width: 13.868896%; height: 18px;\"\u003e\u003cspan style=\"text-decoration: underline;\"\u003e\u003cspan style=\"color: rgb(255, 255, 255); text-decoration: underline;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" style=\"color: rgb(255, 255, 255); text-decoration: underline;\" target=\"_blank\"\u003e860073\u003c\/a\u003e\u003c\/span\u003e\u003c\/span\u003e\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 90px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 90px;\"\u003e\u003cstrong\u003eProduct Name\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/waterproof-dissolved-oxygen-meter-pen\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eWaterproof DO Meter Pen\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003cstrong\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/combination-water-meter-kit-with-do-probe\" rel=\"noopener\" target=\"_blank\"\u003eCombination Water Meter Kit w\/ DO Probe\u003c\/a\u003e\u003c\/strong\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 90px;\"\u003e\u003ca href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/dissolved-oxygen-meter-kit\" rel=\"noopener\" target=\"_blank\"\u003e\u003cstrong\u003eDissolved Oxygen Meter Kit\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/rechargeable-dissolved-oxygen-pen-with-5-meter-cable\" target=\"_blank\"\u003e\u003cstrong\u003eRechargeable DO Pen w\/ 5 Meter Cable\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cstrong\u003eOptical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 90px;\"\u003e\u003ca rel=\"noopener\" href=\"https:\/\/sperdirect.com\/collections\/dissolved-oxygen\/products\/portable-optical-dissolved-oxygen-meter\" target=\"_blank\"\u003e\u003cstrong\u003ePortable Optical Dissolved Oxygen Meter\u003c\/strong\u003e\u003c\/a\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (% Saturation)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–100% O₂ in air\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–200%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–100.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–199.9%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–200.0%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0-200%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Range (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–20 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.00–20.00 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.0–20.0 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0 -20 mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eDO Accuracy (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u0026lt;5: ±0.3 mg\/L≥5: ±0.4 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e±0.3mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (mg\/L)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 mg\/L\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.01mg\/L\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Accuracy (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±2% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.7% O₂\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% F.S.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3% of Full Scale\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±3%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Resolution (%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.10%\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Range\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0–50°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–50.0°C \/ 32–122°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40.0°C \/ 32–104°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0°–45°C \/ 32°–113°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Accuracy\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.8°C \/ 1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e±0.8°C \/ ±1.5°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C (0.9°F)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e±0.5°C \/ 0.9°F\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eTemp. Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1°C\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eAuto Temp. Comp. (ATC)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e10–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0–40°C\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSalinity Resolution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e0.1 ppt\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBarometric Pressure Comp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e500–760 mmHg(66.7–101.3 kPa)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual, 50–115 kPa\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eManual (altitude)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDO Calibration\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Point (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e1-Button (air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e1-Point (100% air)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2-Point (0% \u0026amp; 100%)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eProbe Technology\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003ePolarographic DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eOptical (fluorescent) DO probe\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Warmup Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e~30 min (cal.)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;60 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eNone\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e~10 min (cal.)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor Response Time\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026lt;30 seconds\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eFast\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSensor\/Probe Lifetime\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;6 months\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u0026gt;1 year\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures pH\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures ORP \/ mV\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Conductivity\/TDS\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eMeasures Salinity\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e(optional probe)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eVia compensation\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eMemory \/ Data Storage\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eMax\/Min record\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e99 memory points\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e+100,000 memory points\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eRS232 \/ Data Output\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eRS232\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eDisplay Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eDual LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eLarge backlit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eBacklit LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eLarge LCD\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSimultaneous DO \u0026amp; Temp.\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 18.1875px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 18.1875px;\"\u003eBacklight\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 18.1875px;\"\u003e√\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eBattery Type\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e(4) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e9V\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e3.7V 500mAh Rechargeable Li-ion\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e(6) AAA\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eRechargeable Li-ion\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eCharging\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB Type-C(~1.5 hr)\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003eUSB\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 54px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 54px;\"\u003eIP Rating\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 54px;\"\u003eIP-67 Housing \/ IP-68 Sensor\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eSpare Probe Heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e2 spare probe heads\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 36px;\"\u003e\n\u003ctd style=\"width: 17.005908%; height: 36px;\"\u003eElectrolyte Solution\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.70379%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e√\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003ctd style=\"width: 13.868896%; height: 36px;\"\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":47511261577440,"sku":"860073","price":1699.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/portable-optical-dissolved-oxygen-meter-860073-479959.jpg?v=1752691863"},{"product_id":"atc-do-probe","title":"ATC DO Probe","description":"For use with the following meters:\u003cbr\u003e\u003cbr\u003e\n\n\u003ctable\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"25%\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eMeter\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"75%\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eDescription\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e\u003ca title=\"Sper Scientific 850081  Water Quality Meter\" href=\"https:\/\/sperdirect.com\/products\/water-quality-meter?variant=35846999146653\"\u003e850081\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003eWater Quality Meter\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e\u003ca title=\"Sper Scientific 850086  Water Quality Meter\" href=\"https:\/\/sperdirect.com\/products\/water-quality-meter?variant=35846999179421\"\u003e850086\u003c\/a\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003eWater Quality Meter Kit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"nav_heading\"\u003e\n\u003ch4\u003eSpecifications\u003c\/h4\u003e\n\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"nav_heading\"\u003e\u003c\/div\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"nav_content\"\u003e\n\u003ctable data-mce-fragment=\"1\" class=\"specs_chart\"\u003e\n\u003ctbody data-mce-fragment=\"1\"\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"25%\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eUnit of Measurement:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"25%\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eRange:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"25%\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eResolution:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" width=\"25%\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eAccuracy:\u003c\/b\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eDO:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e0 to 20 mg\/L\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" rowspan=\"2\" class=\"specs_chart\"\u003e0.1\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e±0.4\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eO\u003csub data-mce-fragment=\"1\"\u003e2\u003c\/sub\u003e\u003cspan data-mce-fragment=\"1\"\u003e \u003c\/span\u003ein Air:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e0 to 100.0%\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e±0.7\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eTemperature °F:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e32°F to 132°F\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" rowspan=\"2\" class=\"specs_chart\"\u003e0.1°\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e±1.5\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr data-mce-fragment=\"1\"\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e\u003cb data-mce-fragment=\"1\"\u003eTemperature °C:\u003c\/b\u003e\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e0°C to 50°C\u003c\/td\u003e\n\u003ctd data-mce-fragment=\"1\" class=\"specs_chart\"\u003e±0.8\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\u003cbr data-mce-fragment=\"1\"\u003e \n\n\n\u003cdiv data-mce-fragment=\"1\" class=\"dt_tab_infobox\"\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"dt_tab_infobox_inner\"\u003e\n\u003cdiv data-mce-fragment=\"1\" class=\"nav_heading\"\u003e\u003ca data-mce-fragment=\"1\" class=\"tab_anchor\" id=\"spec_tab\" name=\"spec_tab\"\u003e\u003c\/a\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":47592037613792,"sku":"850081DO","price":196.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/ATC-DO-Probe-813628.jpg?v=1752691845"},{"product_id":"optical-dissolved-oxygen-probe","title":"Optical Dissolved Oxygen Probe","description":"\u003cp\u003e\u003cstrong\u003eAdditional\/replacement probe to fit \u003ca title=\"Optical Dissolved Oxygen Meter\" href=\"https:\/\/sperdirect.com\/products\/optical-dissolved-oxygen-meter\" target=\"_blank\"\u003eSper #86033 Optical DO Meter\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eProbe only.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":47821253148896,"sku":"860067P","price":422.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/optical-dissolved-oxygen-meter-860067-807844.jpg?v=1752691898"},{"product_id":"10-foot-extension-cable-for-optical-dissolved-oxygen-meter","title":"10 Foot Extension Cable for Optical Dissolved Oxygen Meter","description":"\u003cp\u003e\u003cstrong\u003eTen foot extension cable to fit \u003ca href=\"https:\/\/sperdirect.com\/products\/optical-dissolved-oxygen-meter\" title=\"Optical Dissolved Oxygen Meter\" target=\"_blank\"\u003eSper #86033 Optical DO Meter\u003c\/a\u003e. \u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCable only.\u003c\/strong\u003e\u003c\/p\u003e","brand":"Sper Scientific","offers":[{"title":"Default Title","offer_id":47822435287264,"sku":"860067E","price":64.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0356\/8248\/4360\/files\/10-foot-extension-cable-for-optical-dissolved-oxygen-meter-860067e-7452040.jpg?v=1759569054"},{"product_id":"adapter-cable-for-optical-dissolved-oxygen-meter","title":"Adapter Cable for Optical Dissolved Oxygen Meter","description":"\u003cp\u003e\u003cstrong\u003eReplacement adapter cable to fit \u003ca href=\"https:\/\/sperdirect.com\/products\/optical-dissolved-oxygen-meter\" title=\"Optical Dissolved Oxygen Meter\" target=\"_blank\"\u003eSper #86033 Optical DO 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