Duct type CO2 controller NDIR infrared CO2 module inside with special ABC_Logic Self Calibration System.

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

2. NDIR infrared CO2 sensor inside with Self-Calibration and up to 15 years lifetime

3. Humidity and temperature detection optional

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

5. LCD display option can display CO2 measurement and temperature+ RH measurements 

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

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

8. Modbus RS485 communication interface makes usage and test more convenient

9. Smart structure and attractive housing provide you a unique operation feeling 

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

11. Special a 180° rotatable fastness position for the probe can change 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