TFA Comfort Control Digital Thermo, Digital Thermo-Hygrometer, For monitoring temperature (-10 ... 60° C, accuracy ± 1° C) and humidity (1 ... 99% RH, accuracy ± 3%) in living rooms, Display for maximum and minimum levels, Dew point, Alarm function for risk of mold, Dimensions: 102 x 94 x 66 mm, Weight: 250 g, Including detailed manual with many tips for active heating and ventilation and 2 x 1.5 V AA batteries