In-Duct Mount CO2 Transmitter

In-Duct Mount CO2 Transmitter provides precise real-time monitoring of carbon dioxide levels within air ducts, with optional temperature and relative humidity sensing for comprehensive air quality analysis. Its specially designed waterproof sensor probe with a porous film ensures easy installation and reliable operation in duct environments. F   eaturing an easy-to-read LCD display, the unit offers one to three configurable 0-10V or 4-20mA linear outputs. Users can adjust the CO2 measurement range via Modbus RS485 and configure inverse proportional outputs to suit diverse HVAC control applications. Real time carbon dioxide detection in air duct High accuracy temperature and relative humidity with extendable air probe into air duct Water-proof and porous film around the sensor probe Up to 3 analog linear outputs for 3 measurements Modbus RS485 interface for 4 measurements Available with or without LCD display Specifications Monitoring Parameters CO2 Temperature Relative Humidity Sensing element Non-Dispersive Infrared Detector (NDIR) Digital combined temperature and humidity sensor Measuring range 0~2000ppm(default) 0~5000ppm (selectable in the order) 0℃~50℃(32℉~122℉) (default) 0~100%RH Display Resolution 1ppm 0.1℃ 0.1%RH Accuracy @25℃ (77℉) ±60ppm + 3% of reading ±0.5℃ (0℃~50℃) ±3%RH (20%-80%RH) Lifetime 15 years (normal) 10 years Calibration cycle ABC Logic Self Calibration —— —— Response Time <2 minutes for 90% change <10 seconds to reach 63% Warm up time 2 hours (first time)2 minutes (operation) Electrical Characteristics Power supply 24VAC/VDC Consumption 3.5 W max. ; 2.5 W avg. Outputs Two or three analog outputs0~10VDC(default) or 4~20mA (selectable by jumpers) 0~5VDC (selected at place the order) Modbus RS485 interface (optional) RS-485 with Modbus protocol, 19200bps rate, 15KV antistatic protection, independent base address Conditions of Using and Installation Operation conditions 0~50℃(32~122℉); 0~95%RH, non condensing Storage conditions 0~50℃(32~122℉)/ 5~80%RH Weight 320g Installation Fixed on the air duct with 100mm installation hole size IP class (housing) IP50 for no LCD IP40 for with LCD Standard CE-Approval   Downloads In-Duct Mount CO2 Transmitter Datasheet