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Vaisala Intrinsically Safe Humidity and Temperature Transmitters

Model: HMT 360 Series

The Vaisala HUMICAP® Humidity and Temperature Transmitter HMT361 wall mount transmitter, shown with six probe options, is designed specifically for hazardous and explosive environments.
Quantity Price/Unit
0 or more POA
Datasheet (PDF)


The Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMT360 is the ideal solution for measuring humidity in hazardous areas.

The transmitters operate safely and reliably even in the most hazardous classifications. The HMT360 transmitters' proven performance and technology conform with rigorous international standards.


▪ Measures humidity and temperature, outputs also dew point, mixing ratio, absolute humidity and wet bulb temperature
▪ Safe operation with the entire transmitter in hazardous areas: Division 1 and 2 (USA, Canada), Categories 1G / Zone 0 and 1D / Zone 20 with protection cover (EU)
▪ Intrinsically safe
▪ Designed for harsh conditions
▪ Vaisala HUMICAP® Sensor features high accuracy, excellent long-term stability, and negligible hysteresis
▪ Six probe options
▪ Temperature range between -70 to +180°C (-94 … +356°F) depending on the probe option
▪ NIST traceable

Six interchangeable probe models for a variety of applications:

  • HMT361 for wall mounting
  • HMT363 for duct mounting and tight spaces
  • HMT364 for high pressures up to 100 bar and vacuum conditions
  • HMT365 for high temperatures
  • HMT367 for high humidities
  • HMT368 for pressurized pipelines up to 40 bar


  • Intrinsically safe - the whole transmitter can be installed into the explosive area
  • Complies with classifications from VTT (ATEX , Europe), FM (USA), CSA (Canada), TIIS (Japan), PCEC (China), VTT (IECEx) , and TR CU (EAC: Russia, Kazakhstan and Belarus)
  • The interchangeable probe module contains all calibration coefficients, so a calibrated probe can be switched in the field without the need to input any data manually
Please refer to product's datasheet (PDF)
Product Dimensions (mm): 0 x 0 x 0
Package Dimensions (mm): 0 x 0 x 0
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