Wireless Modbus Indoor Air Quality Sensor
Product Model: IAQM-THCO2

Main Features

The IAQM-THCO2 is a IEEE 802.15.4 wireless sensor compatible with DM-124 Modbus networks. Its main role is to measure indoor air quality, specifically the temperature, relative humidity and CO2 levels.

The IAQM-THCO2 is auto configurable, which means that it adds itself seamlessly to an existing DM-124 network, acting as another link node.

Once installed, a DM-124, or more precisely the controller connected to it must interrogate the IAQM-THCO2 for its data, in the same way as the rest of Modbus devices.

Its main features are:

  • Temperature, Humidity and CO2 measurements
  • Wireless communication based on IEEE 802.15.4 (2.4 GHz)
  • Auto configurable
  • Modbus RTU wireless transmission
  • AC/DC power adapter included
  • LCD screen which shows real time sensor levels

Our WM Config Tool eases the configuration process either through radio. User Manual and latest version is available in our Tech Resources wiki page.



IAQM-THCO2 Wireless Modbus Indoor Air Quality Sensor
ITEM Specification
Overall specification
Power supply External AC/DC Power adapter
Protocols Modbus RTU, Wireless IEEE 802.15.4
Radio 2.4GHz - with External Antenna (SMA connector)
Temperature Range:-40 ~ 123.8 °C
Resolution: 0.1 °C
Accuracy: ± 0.3 °C
Relative Humidity Range:0 ~ 100 %RH
Resolution: 0.1 %RH
Accuracy: ± 3.0 %RH
CO2 Range:0 ~ 3000 ppm
Resolution: 1 ppm
Response Time: 0~80% <= 30 sec
Accuracy: ± 2%(Full Scale @ 10 ~50 °C )
Warm-up Time: @ 25°C < 90 sec
Physical Characteristics
Dimensions 112x112x35 mm
Material PC/ABS
Safety class IP20
Certifications UNE EN 60950-1:2007 + Corr: 2007+A11:2009+A1:2011
UNE-EN 61000-6-1:2007
UNE-EN 61000-6-3:2007
UNE-EN 55 022:2011 + Err UNE-EN55022:2011/AC
UNE-EN 55 024:2011
EN 301489-1 v1.8.1 (2008-02)
Type Name Size Modification Date
Datasheet IAQM-THCO2 DS001 281.92 KB 11/21/2015 11:20 AM.

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