Tramex RHP-B Relative Humidity Probe for Tramex MRH III Moisture and Humidity Test Kit and CMEX II Digital Concrete Moisture Meter. When the probe is plugged into the New MRH III it auto-changes to hygrometer mode. The probe can measure humidity, temperature and dew-point in concrete flooring, walls etc., and the environment in a building or structure.

This new Test 623 Hygrometer features a large, clear, graphical display for displaying both current and past temperature and humidity values. This function makes analysis of current and past ambient conditions possible, without involving time-consuming analysis on a separate pc unit.This Testo 623 Hygrometer features: a histogram function that shows current and past temperature or humidity values, as well as provides analysis on those values sans-PC. A convertible hanging and standing bracket allows flexible positioning, either on a wall or on a desk.