Take this small portable relative humidity and temperature meter, the Amprobe® TH-1 anywhere for those quick comfort-level measurements. Easy to read dual display with data hold to freeze measurement result on the screen. Precision capacitive RH sensor with twistable protective cap. This Amprobe Relative Humidity and Temperature Meter uses a precision capacitance sensor to deliver accurate performance with long term stability. This high accuracy instrument measures the full range of relative humidity from 0 percent to 100 percent and features an exceptionally wide ambient temperature measurement range from -20 deg C (-4 deg F) to 60 deg C (140 deg F). The sensor is mounted on along shaft extending from the top surface of the unit, making probing into duct work and hard to reach areas more easy. The large LCD displays two measurements simultaneously with a full range of display options including hold, min, max and relative. The TH-3 is a complete package and comes with soft carrying case, sensor cover, battery and manual.