Desktop CO2 Monitor and Alarm
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The Desktop CO2 Monitor precisely measures carbon dioxide levels, temperature, and relative humidity in real time.
Note: All Tongdy monitors and controls ship direct from the factory. Please allow 10-15 business days for shipping and handling.
Its 3-color backlight LCD clearly indicates three CO2 concentration ranges, while the buzzer alarm alerts to critical thresholds. Users can view 24-hour averages and maximum CO2 values for detailed environmental insights. Designed for flexibility, it includes optional on/off output for ventilation control and supports Modbus RS485 communication. Powered by 24VAC/VDC, 100–240VAC, or a DC adapter, this monitor integrates seamlessly into diverse monitoring setups for expert environmental management. The unit includes a handheld remote controller for parameter setup and additional functionality.
- Real time monitoring room carbon dioxide
- NDIR infrared CO2 sensor inside with self calibration
- Accurate and reliable CO2 measurement
- More than 10 years lifetime of CO2 sensor
- Temperature and humidity monitoring
- Three-color (Green/Yellow/Red) LCD backlight indicates ventilation level - optimal/moderate/poor based on the CO2 measurements
- Buzzer alarm available/disable selected
- Optional display 24h average and max. CO2
- Provide optional 1x relay output to control a ventilator
- Provide optional Modbus RS485 communication
- Touch button for easy operation
- 24VAC/VDC or 100~240V or USB 5V power supply
- Includes handheld remote for parameter setup and additional functionality
Specifications
| Power supply | 100~240VAC or 24VAC/VDC wire connecting USB 5V (>1A for USB adaptor) 24V with an adaptor |
| Consumption | 3.5 W max. ; 2.5 W avg |
| Gas detected | Carbon Dioxide (CO2) |
| Sensing element | Non-Dispersive Infrared Detector (NDIR) |
| Accuracy@25℃(77℉) | ±50ppm + 3% of reading |
| Stability | <2% of FS over life of sensor (15 yr typical) |
| Calibration interval | ABC Logic Self Calibration Algorithm |
| CO2 sensor life | 15 years |
| Response Time | <2 minutes for 90% step change |
| Signal update | Every 2 seconds |
| Warm up time | <3 minutes (operation) |
| CO2 Measuring range | 0～5,000ppm |
| CO2 Display resolution | 1ppm |
| 3-color backlight for CO2 range | Green : <1000ppm Yellow: 1001~1400ppm Red: >1400ppm |
| LCD Display | Real time CO2, Temp &RH Extra 24h average/max/min CO2 (optional) |
| Temperature measuring range | -20～60℃(-4～140℉) |
| Humidity measuring range | 0～99%RH |
| Relay output (optional) | One relay output with rated switching current: 3A, resistance load |
| Operation conditions | -20~60℃(32~122℉); 0~95%RH, non condensing |
| Storage conditions | 0~50℃(14~140℉), 5~70%RH |
| Dimensions/ Weight | 130mm(H)×85mm(W)×36.5mm(D) / 200g |
| Housing and IP class | PC/ABS fireproof plastic material, protection class: IP30 |
| Installation | Wall mounting (65mm×65mm or 2”×4”wire box) Desktop placement |
| Standard | CE-Approval |
Downloads
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Product Information
Product Information
The Desktop CO2 Monitor precisely measures carbon dioxide levels, temperature, and relative humidity in real time.
Note: All Tongdy monitors and controls ship direct from the factory. Please allow 10-15 business days for shipping and handling.
Its 3-color backlight LCD clearly indicates three CO2 concentration ranges, while the buzzer alarm alerts to critical thresholds. Users can view 24-hour averages and maximum CO2 values for detailed environmental insights. Designed for flexibility, it includes optional on/off output for ventilation control and supports Modbus RS485 communication. Powered by 24VAC/VDC, 100–240VAC, or a DC adapter, this monitor integrates seamlessly into diverse monitoring setups for expert environmental management. The unit includes a handheld remote controller for parameter setup and additional functionality.
- Real time monitoring room carbon dioxide
- NDIR infrared CO2 sensor inside with self calibration
- Accurate and reliable CO2 measurement
- More than 10 years lifetime of CO2 sensor
- Temperature and humidity monitoring
- Three-color (Green/Yellow/Red) LCD backlight indicates ventilation level - optimal/moderate/poor based on the CO2 measurements
- Buzzer alarm available/disable selected
- Optional display 24h average and max. CO2
- Provide optional 1x relay output to control a ventilator
- Provide optional Modbus RS485 communication
- Touch button for easy operation
- 24VAC/VDC or 100~240V or USB 5V power supply
- Includes handheld remote for parameter setup and additional functionality
Specifications
| Power supply | 100~240VAC or 24VAC/VDC wire connecting USB 5V (>1A for USB adaptor) 24V with an adaptor |
| Consumption | 3.5 W max. ; 2.5 W avg |
| Gas detected | Carbon Dioxide (CO2) |
| Sensing element | Non-Dispersive Infrared Detector (NDIR) |
| Accuracy@25℃(77℉) | ±50ppm + 3% of reading |
| Stability | <2% of FS over life of sensor (15 yr typical) |
| Calibration interval | ABC Logic Self Calibration Algorithm |
| CO2 sensor life | 15 years |
| Response Time | <2 minutes for 90% step change |
| Signal update | Every 2 seconds |
| Warm up time | <3 minutes (operation) |
| CO2 Measuring range | 0～5,000ppm |
| CO2 Display resolution | 1ppm |
| 3-color backlight for CO2 range | Green : <1000ppm Yellow: 1001~1400ppm Red: >1400ppm |
| LCD Display | Real time CO2, Temp &RH Extra 24h average/max/min CO2 (optional) |
| Temperature measuring range | -20～60℃(-4～140℉) |
| Humidity measuring range | 0～99%RH |
| Relay output (optional) | One relay output with rated switching current: 3A, resistance load |
| Operation conditions | -20~60℃(32~122℉); 0~95%RH, non condensing |
| Storage conditions | 0~50℃(14~140℉), 5~70%RH |
| Dimensions/ Weight | 130mm(H)×85mm(W)×36.5mm(D) / 200g |
| Housing and IP class | PC/ABS fireproof plastic material, protection class: IP30 |
| Installation | Wall mounting (65mm×65mm or 2”×4”wire box) Desktop placement |
| Standard | CE-Approval |
Downloads
Description
Description
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Product Category: HVAC Controls
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