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  • Relative Humidity:
    • Range: 0 to 100%
    • Accuracy: ±1.7% RH (0 to 90% RH); ±2.5% RH (90 to 100%RH)
  • Temperature:
    • Range: -40 to 80°C (-40 to 176°F)
    • Accuracy: ±0.2°C
  • Two-wire loop-powered or three-wire voltage output configurations
  • Display available
  • Interchangeable probe module for minimal maintenance downtime
  • Different output scalings
  • P65 (NEMA 4) housing
  • NIST traceable (certificate included)

The Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMT100 are designed for humidity and temperature monitoring in demanding environments.

The Vaisala HMT100 incorporates Vaisala HUMICAP® technology that measures relative humidity accurately and reliably. Vaisala HUMICAP® is also resistant to dust and most chemicals.

The Vaisala HMT100 is available as a wall mount or remote probe model with an optional display. For high temperature applications where space is limited, the remote probe is ideal. The HMT100 can show relative humidity only, dew point only, or relative humidity and temperature, or dew point and temperature readings.

The probes are interchangeable without having to calibrate or adjust the transmitter. The HMT100 can also be installed outdoors using an installation kit, or directly into an air conditioning channel using a duct installation kit.

Vaisala HMT100 Series Applications

  • Stability rooms
  • HVAC
  • Livestock farms
  • Greenhouses
  • Indoor swimming pools
  • Outdoor applications
Vaisala 215109 Outdoor Installation Kit
Pole mount kit with rainshield, includes fixing bracket, installation plate, screws, and bolts
Vaisala 215619 Duct Installation Kit
Plastic pipe with a flange for HMT120 and HMT130 series transmitters
Vaisala HM46670SP Sintered Stainless Steel Filter
12mm diameter, male thread, with 38µm pore size