Humidity and Temperature Meter Series HMT330

Measure humidity in harsh environments with the best-in-class instrument you can truly depend on. The Vaisala HUMICAP® Humidity and Temperature Transmitter Series HMT330 with 10-year warranty* is designed for demanding industrial applications where stable measurements and extensive customization are essential. There are six models to choose from:

  • HMT331 for wall mounting
  • HMT333 for duct mounting and tight spaces
  • HMT334 for high pressures up to 100 bar and vacuum conditions
  • HMT335 for high temperatures
  • HMT337 for high humidity and meteorological applications
  • HMT338 for pressurized pipelines up to 40 bar

The instrument can be quickly tailored to meet the specific needs of each individual application and is pre-configured for each delivery.

Click here to download bid specs for USA.

Features
Full 0 … 100 %RH measurement, temperature range up to +180 °C (+356 °F) depending on model
Pressure tolerance up to 100 bar depending on model
Excellent performance in harsh conditions; good chemical tolerance
Corrosion-resistant IP65/IP66 housing
Traceable calibration for measurement and analog outputs (certificates included)
RS232/485/422 LAN
Modbus protocol support (RTU/ TCP)
Optional graphical display and keypad for convenient operation
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Key Benefits

Reliable and stable
Accurate and stable measurement even in demanding conditions gives reliable data. The construction of the transmitter is suitable for the heavy duty in industrial applications.
Configurable and ready for installation
The product is assembled and configured to your needs, delivered within days to your facility, and fully ready for installation. The user interface is multilingual and available in English, German, French, Japanese and Chinese.
*10-year warranty
We offer a 10-year warranty on new HMT330 transmitters that are calibrated annually at the Vaisala Service Center. This warranty program is available to all customers for units purchased from January 2014 onwards and requires no sign-up.

Customer Stories

The Vasa ship capsized and sank in Stockholm 1628.
Success Story

Creating the Right Climate

Vaisala Humidity Transmitters Help to Preserve the Royal Warship Vasa Saving the famous 17th century Swedish warship, Vasa, from further...
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Mona Lisa preserved by Vaisala
Success Story

Mona Lisa Preserved by Vaisala

By Jean-Francois Bore, Application Sales Engineer, Vaisala "I am sure you know of the Mona Lisa, known as La Joconde in French, one of the most...
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Ceramics factory - drying clay
Success Story

Saving Energy in Ceramics Drying

“Vaisala relative humidity transmitters have become standard within the Wienerberger Group.” Steven Debels, 
Plant Manager, 
Koramic Pottelberg...
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