1、This series transmitters are designed for monitoring and controlling indoor air quality (CO2 concentration)

2、CDWNL is for wall mount and CDDL is for duct mount

3、CDDL uses a patented probe structure for excellent sampling performance

4、Good performance NDIR digital sensor and circuit, ensure precise measurement and temperature compensation

5、Over voltage and reverse polarity protection, high reliability and anti-interference capability

6、All electrical terminals are on the inside bottom, avoid any possible destroy to PCB when wiring (for CDWNL)

7、Dual outputs 0~10V and 4~20mA supply flexible application

8、15 years sensor life without maintenance

Sensor: NDIR sensor, with ABC algorithm

Sampling Method: diffusion

Accuracy: ±(50+5%MV) ppm

Response time(T90): <120s (30cc/min, low airflow)

Drift: <±10ppm/year

Range: 0~2000ppm

Output: 4~20mA & 0~10V

Load resistance: ≤500Ω (Current output), ≥2kΩ (Voltage output)

Power supply: 18~28VAC/16~35VDC

Working environment: 0~50°C, 0~95%RH (Non-cond.)

Temp. Compensation: 10~40°C

Storage temperature: -30~60°C

Housing: fire retardant PC(UL94V-0) (CDWNL), 

fire retardant ABS+PC(UL94V-0) (CDDL)

Protection: IP30(CDWNL), housing IP65/probe IP30(CDDL)

Weight:145g(CDWNL), 230g(CDDL)

Approval: CE

Models