Vaisala HMT370EX Series Intrinsically Safe Humidity and Temperature Transmitters


The intrinsically safe HMT370EX is the ideal solution for use in hazardous areas up to zone 0 and 20. In addition to measuring relative humidity and temperature, the transmitter outputs also other humidity parameters: dew point temperature, wet-bulb temperature, absolute humidity, mixing ratio, water concentration, water mass fraction, water vapor pressure, and enthalpy. Special models for moisture in oil and jet fuel measurements are available.



Product Details

Vaisala HMT370EX Series HUMICAP Humidity and Temperature Transmitters are the ideal solution for measuring humidity in hazardous areas. The intrinsically safe and robust transmitter operates safely and reliably even in the most hazardous classifications, such as Zone 0.


  • Intrinsically safe (Exi)
  • Interchangeable probes
  • Detachable probe module
  • Graphical LCD display and non-display model
  • Vaisala HUMICAP® sensor
  • Compatible with Vaisala Insight PC software
  • Traceable calibration (certificate included)