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 is designed for demanding industrial applications where stable measurements and extensive customization are essential. There are multiple probes 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 and HMT338 for pressurized pipelines up to 40 bar. The instrument can be tailored to meet the specific needs of each individual application and is pre-configured for each delivery. We offer a 10-year warranty* on new HMT330 transmitters when calibrated yearly at one of Vaisala Service Centers.

You might also be interested in our interchangeable humidity probes; see the Indigo product family page for more information about the latest probes or download the comparison table for HMT330 and Indigo HMP Series (pdf). To field calibrate the HMT330, great choices are HUMICAP HM70 Hand-Held or HMK15 Salt Calibration Kit.

Click here to download bid specs for USA.