Portable humidity meter fitted with robust stainless probe with sintered filter-cap for general or duct measurements to 120 degC, and fast-action K-type surface temperature probe. Displays relative humidity, absolute humidity, dew point, degree of humidity, enthalpy, temperature, and differential temperature (dewpoint~surface). Operating range 2~98%RH (+/-2%). Air temperature -20~120 degC (+/-0.2/0.5). Surface temperature -60~300 degC (+/-0.1). Internal memory for 10,000 values with USB interface, cable and software for download and presentation. Battery operated.
Testo 635-2 Humidity, Temperature & Dewpoint Meter