FEATURES Communication: RS-485 Modbus (RTU) Accuracy: CO2: ±40 ppm + 2 % of reading, DC model: 75 ppm or 10 % of reading (whichever is greater)
Categories : HK INSTRUMENTS ,  HK INSTRUMENTS Series Gas Pressure Sensors , 
CDT-MOD-2000 Duct
CO2 transmitters with temperature output for duct that use Modbus serial communication protocol
CDT-MOD-2000 Duct combines CO2 and temperature measurements in one device installed in air ventilation duct.
CDT-MOD-2000 Duct series devices include:
• Modbus communication for each measurement parameter (CO2 and T)
• Mounting flange
• Clear backlit display
Technical details
Communication:RS-485 Modbus (RTU)
Accuracy: CO2: ±40 ppm + 2 % of reading, DC model: 75 ppm or 10 % of reading (whichever is greater)
Measurement elements :NTC10k temperature sensor, Non Dispersive Infrared (NDIR) CO2 sensor
Measuring units:ppm, °C
Calibration :Automatic self-calibration, ABC LogicTM or continuous comparison (DC)
Supply voltage :24 VDC/VAC ±10 %
Protection standard:IP54