Humidity and Temperature Transmitter Series HMDW80

±3%RH low maintenance transmitters for standard HVAC

5 year warranty HVAC devices

The HMDW80 series is versatile with transmitters for wall and duct mounting for measuring relative humidity and temperature in various building automation applications. These transmitters combine easy installation and reliable operation with a low requirement for maintenance. The HMDW80 Series has easy field configuration of wet-bulb, enthalpy and dew point outputs instead of RH in duct. There are IP65-classified transmitters for humid areas and sensors with a radiation shield for outdoor use. The series also includes temperature-only transmitters and transmitters with an optional display. 5-year warranty is valid for instruments purchased in 2021 and beyond.

The duct mount transmitters are well suited to a variety of duct sizes, the outdoor transmitters can be mounted directly onto a wall or pole without any extra accessories, and the wall mount transmitters can be installed without the need to make holes in the transmitter enclosure.


  • ±3.0 %RH accuracy
  • Full 0 … 100 %RH measurement range
  • Wall-mount temperature-only transmitters TMW82/83
  • Standard wall-mount humidity and temperature transmitters HMW82/83
  • IP65-classified wall-mount humidity and temperature transmitters HMW88/89(D) with and without display, for humid areas
  • Duct-mount humidity and temperature transmitters HMD82/83(D) with and without display
  • Outdoor humidity and temperature transmitter HMS82/83
  • Typical installation locations include Ventilation ducts, walls, wash-down areas and outdoor locations

Key benefits

Easy installation

The HMDW80 series transmitters are optimized for easy installation to reduce time and money. There are no loose parts, screws are retained in the enclosure, all connectors are clearly labeled, and the connectors are within easy reach.

Minimal maintenance

Requires minimal maintenance thanks to the excellent sensor stability and high-quality materials. If necessary, the INTERCAP® sensor can be easily exchanged in the field with minimum downtime.

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