Compact meter is ideal for field applications — it displays relative humidity and temperature simultaneously, and dew point or wet bulb or probe temperature on a large LCD. Features include a choice of readings in degF or degC, Min/Max, data hold, and auto power off. Unique sensor cap closes to protect the sensor during storage. Advanced features include the calculation of T1-T2 temperature differential with external temperature probe 37803-18 (sold separately).


Unique sensor cap closes to protect the sensor during storage. Meter can be calibrated in the field using optional RH calibration standard salts. Order meter only or the complete thermohygrometer kit.

Advanced Superheat feature calculates the differential temperature measurements between T1 - T2, or T1, or dew point T1. Compact design is ideal for field applicationsit displays relative humidity and temperature simultaneously along with dew point or wet bulb or probe temperature on a large triple display with backlighting. Features include a choice of readings in °F or °C, min/max, average function, data hold, RS-232 interface, datalogger, real-time clock, and auto power off.
37803-12 includes two type K temperature probes and four AAA batteries.