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Vaisala HMW80 Wall Mount RH&T Transmitters

Vaisala HMW80 Wall Mount RH&T transmitters are aimed at the building automation market.  Ideal for typical indoor ambient monitoring, Vaisala HMW80 transmitters employ the cost effective INTERCAP® humidity sensor.  Along with standard options of relative humidity outputs, Vaisala HMW80 series are able to offer calculated parameters of dew point temperature, wet bulb temperature, and enthalpy. (Calculated variables not available on lowest cost HMW82 and HMW83 models).


The following models give options on output type, ingress protection and display…


  • TMW82, 2-wire/4-20mA, IP30 (Temperature Only)
  • TMW83, 3-wire/voltage output, IP30 (Temperature Only)
  • HMW82, 2-wire/4-20mA, IP30
  • HMW88, 2-wire/4-20mA, IP65
  • HMW88D, 2-wire/4-20mA, IP65 with local display
  • HMW83, 3-wire/voltage output, IP30
  • HMW89, 3-wire/voltage output, IP65
  • HMW89D, 3-wire/voltage output, IP65 with local display
  • HMS82, 2-wire/current output, outdoor with radiation shield, RH+T
  • HMS83, 3-wire/voltage output, outdoor with radiation shield, RH+T


The clean, simple design of the Vaisala HMW80 transmitters make these instruments ideal for shopping centres, university/school builds, swimming pools (IP65 recommended) and general office monitoring.  Uncertainty is within ±3% over the normal working range, rising to ±5% at higher humidities.  For tighter control we recommend the HMW90 RH&T transmitters which also include factory calibration certs as standard.


Fluidic have a calibration lab and are able to calibrate RH&T transmitters to UKAS traceable standards.


Fluidic are a recognised partner of Vaisala CEN (Industrial division) for Scotland and the North of England.  Our instrumentation engineers are product trained and able to help with instrument selection within the full range of Vaisala Relative Humidity and Temperature instruments.  Please call either office for more information (Glasgow 0141 641 5920,  Warrington 01925 572401).



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