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Vaisala HMW90 series

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The wall-mounted Vaisala HUMICAP indoor humidity and temperature measurement series GMW90 is intended for indoor environments, where high accuracy, stability, and reliable operation are required. The HMW90 is a flexible product family with a variety of options and features, both analog and digital output models are available. The sensors are exceptionally easy to configuration, install, and adjust in the field. 

There are several instruments available in the HMW90 series, please contact our sales team for pricing or technical advice.

Product Features

  • Document downloads

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  • Both analog and digital output
  • Easy installation, configuration and field adjustment
  • Humidity parameter options: relative humidity, dew point, mixing ratio, enthalpy, wet bulb temperature, dew point depression and absolute humidity
  • Full 0 to 100 % rh measurement range
  • Up to ± 1.7 % rh accuracy
  • Calculated humidity parameters (Td, x, h, Tw, a, T-Td)
  • User exchangeable humidity and temperature module


GMW90 series includes the following models:

TMW92      Tempertaure only, 2-wire, current output

TMW93      Temperature only, 3-wire, voltage output

TMW90      Temperature only, configurable analog output model

HMW92      Relative hunidity & temperature, 2-wire, current output

HMW92D      Relative humidity & temperature, 2-wire, current output with display

HMW93      Relative humidity & temperature 3-wire, voltage output

HMW93D      Relative humidity & temperature, 3-wire, voltage output with display

HMW90      Relative humidity & temperature, configurable analog/digital model

HMW95      Relative humidity & temperature, digital (BACnet, Modbus) model

HMW95D      Relative humidity & temperature, digital (BACnet, Modbus) model with display

For full technical details please refer to the product data sheet.



Vaisala HMW90 series data sheet

  • Technical Document
  • PDF file
  • 3 MB

Vaisala HMW90 series user manual

  • Technical Document
  • PDF file
  • 2 MB

Vaisala HMW90 series wall cover quick user guide

  • Technical Document
  • PDF file
  • 2 MB
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