HDU transmitters are designed for detecting and controlling carbon dioxide concentration and temperature inside unheated places like parking halls. The transmitter information can be used for demand based ventilation control, for example.
Technical data
Product number: 1135090 / 1135091
Range: 0...2000 ppm CO2; -50...+50 °C
Mounting: with screws
Housing: IP 54, PC-plastics
Accuracy: typ. ±40 ppm +3 % from reading (ABCLogic™); ±0.5 °C
Options: relay
Supply: 24 Vac/dc (22…28 V) < 10 VA
Input: 0…10 V < 2 mA
Dimensions: 105 x 110 x 46 mm
Ambient temperature: -30...+50 °C; 0...85 % RH (non cond.)
Output: 0...10 V < 2 mA