This thermo-hygrometer with dew point is a compact, easy-to-use, robust instrument for fast, repeatable measurements of relative humidity, temperature and dew point. It is ideal for single handed operation when taking measurements in air streams. Suitable for monitoring air conditioning and heating system ducts, controlled environments, storage areas, etc.-20 to 70C x 0.10% to 100%RH x 0.1%Displays temperature in C or FDew point measurementSimultaneous display of humidity and temperature readings35mm hi-contrast LCD display with backlightData hold freezes displayed measurementsMin/max memory since power onLow battery indicationAuto power off after approximately 15 minutes2 year warrantySupplied with soft carry pouch and battery