CDT-2000/5000-Duct Carbon Dioxide CO2 Transmitters for Duct

Our CDT-2000/5000-Duct is designed for measuring CO2 in air ducts of ventilation systems.

The CDT-2000/5000-Duct converts the the values measured in the ranges of optionally 0-2000 ppm or 0-5000 ppm into output signal.

The CO2 value is measured via the NDIR sensor, which is able to compensate possible pollution with the help of its 2-ray measuring principle. Optionally, our CDT-2000/5000-duct is available with an additional sensor for measuring temperature and humidity.



Product Code Output ppm Output Temp. Output Humidity
CDT-2000/5000-Duct-V 0-10V
CDT-2000/5000-Duct-T-V 0-10V 0-10V
CDT-2000/5000-Duct-T-H-V 0-10V 0-10V 0-10V
CDT-2000/5000-Duct-A 4-20mA
CDT-2000/5000-Duct-T-A 4-20mA 4-20mA
CDT-2000/5000-Duct-H-A 4-20mA 4-20mA


Power supply: At 0 … 10 V: 16 … 24 VDC or 24 VAC
At 4 … 20 mA: 16 … 24 VDC
Power consumption: < 9 mA
Electrical connection: Screw clamps
Output: 0…10 V or 4-20mA
Sensor element: (NDIR) sensor with automatic backgroand calibration
Measuring range CO2: 0…2000 ppm
Accuracy: < ± (50ppm 2% of scale reading) at 25°C and 1013 mbar
Temperature: 0 … 10 V or 4-20 mA / -30 °C … +70 °C
Accuracy: ± 0,5°C
Humidity: 0…10 V or 4-20mA / 0…100% r.h.
Accuracy: < 3% at 25°C between 10…90% r.h.
Operating temperatur: -20°C…+50°C
Humidity: 10…95% r.h.
Protection class: IP65 (Housing)
Casing: Plastic
Mounting equipment (included): Mounting flange
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