1. Special used to real-time detect CO2 level in airducts. 

2. NDIR infrared CO2 sensor inside with Self-Calibration and up to15 years lifetime

3. Humidity and temperature detection optional

4. Combined temperature and humidity sensor provide the highestaccuracy in full range 

5. LCD display option can display CO2 measurement and temperatureRH measurements 

6. 3-color backlit LCD indicates the CO2 level more clearing andalarm function

7. Providing one or three 0~10VDC or 4~20mA analogoutputs 

8. Modbus RS485 communication interface makes usage and test moreconvenient

9. Smart structure and attractive housing provide you a uniqueoperation feeling 

10. Simple and skillful design and installation with a take-downand replacing filter to provides dust-proof protection

11. Special a 180° rotatable fastness position for the probe canchange the direction of air detection. 

12. All housing and probe are IP54 class

13. CE-Approval

Typical Applications 

1. Building management for office areas and residental

2. Ventilation control system vivian at tongdy dot com

CO2 Monitor/Controller