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MBusAO_RTH_CO2_LCD_Wall: Modbus-RTU Wall Temp/Humidity/CO2 Sensor with LCD Display

Regular price $239.00

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Part #: MBusAO_RTH_CO2_LCD_Wall

The MBusAO_RTH_CO2_LCD_Wall sensor is a 3-in-1 combination sensor used to detect, transmit, and display CO2, Humidity, and Temperature levels.

This Modbus-RTU enabled temperature / humidity / CO2 sensor has a backlit LCD display and is designed to be mounted on a wall or a surface.  

The sensor values can be read in real-time over RS485 networks via the Modbus-RTU protocol; additionally, sensor values can be measured by PLCs, Automation Controllers, or I/O devices by using the three 0-5V analog outputs built into the device.

The backlit LCD display shows the current sensor values. The LCD display background color changes from Green at safe CO2 levels to Yellow/Orange at Moderate CO2 levels to Red at Dangerous CO2 levels.

CO2 Sensing Technology Non-Dispersive Infrared Detector
CO2 Range 0~2,000ppm
CO2 accuracy(@ 25℃ ) ±40ppm + 3% reading
Stability <2% of FS over lifetime (15 years) of sensor
Calibration ABC Logic self-calibration
Response time <2 minutes for 90% step change
Temperature range / accuracy 0~50℃/ ±0.4℃
Humidity accuracy ±3%RH (20%RH~70%RH, 25℃)
Warm time 2hrs (First time or after power off for a long time)
2min (operational)
Analog Outputs 3 x 0~5VDC analog outputs
3 color backlit LCD Green: CO2 measurement ≤ 1,000ppm
Yellow: 1,000ppm< CO2 measurement ≤1,400ppm
Red: CO2 measurement >1,400ppm
Power supply 24VAC/VDC
Power Consumption 1.8 W max., 1.2 W average
Operating Conditions 0~50℃(32~122℉); 0~95%RH, non condensing
Storage condition -40~70℃(-40~158℉)
Net weight/ Dimensions 210g / 130mm×85mm×36.5mm
Housing PC/ABS fire-proof, IP30 protection
Certifications CE-approved



MBusAO_RTH_CO2_Wall Modbus Map
MBusAO_RTH_CO2 Tech Sheet and Install Guide