Wall mount carbon dioxide concentration in the ambient air up to 2,000ppm, output signal 0-10V and/or 4-20mA, 24vAC/DC power

Applications & Features
This series transmitters are designed for monitoring and controlling indoor air quality (CO2 concentration)
CDWNL is for wall mount and CDDL is for duct mount
Good performance NDIR digital sensor and circuit, ensure precise measurement and temperature compensation
Over voltage and reverse polarity protection, high reliability and anti-interference capability
All electrical terminals are on the inside bottom, avoid any possible destroy to PCB when wiring (for CDWNL)
Dual outputs 0~10V and 4~20mA supply flexible application
15 years sensor life without maintenance
Specifications
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:150g(CDWNL), 235g(CDDL)
Approval: CE