Relative Humidity Temperature Meter, 2 Display

The meters use a precision capacitance sensor to deliver accurate performance with long term stability.|Dual display|Relative function monitors humidity and temperature changes|Extended probe stem to easily access air ducts|Min / Max readings|Data Hold|Capacitive sensor with protective cover|Auto Power Off|Wet Bulb / Dewpoint measurements (THWD-3 only)|This high accuracy instrument measures the full range of relative humidity from 0% to 100% and features an exceptionally wide ambient temperature measurement range from 4degF to 140degF ( -20degC to 60degC). The sensor is mounted on a long shaft extending from the top surface of the unit, making probing into ductwork and hard to reach areas easier. The large LCD displays two measurements simultaneously with a full range of display options including Hold, Min, Max and Relative. The THWD-3 also measures dewpoint and wet bulb.