Rotronic Instruments Hygropalm HP 21 Handheld Hygrometer, ±1 %RH Accuracy, +60°C Max, 100%RH Max

The Rotronic HygroPalm21 temperature and humidity handheld with fixed probe is ideal for making accurate spot-checks of conditions in offices, public buildings, laboratories, test rooms, HVAC, production areas in all industries, storage areas, galleries, museums and many other environments. Interface with a PC running optional HW4 software provides a useful data logging and charting function.

Temperature and humidity measured values and a calculated dew point value are clearly displayed on a backlit LC screen with trend indicators. These confirm that stable conditions exist including temperature equilibrium with the probe itself (important for precise and repeatable humidity measurement) High accuracy humidity / temperature measurement.