TFA digital thermo hygrometer with coloured comfort zone for a healthy room climate. Maximum and minimum function. Warning for excessive moisture in air. Wall mounting or table standing. Temperature range: indoor 0 to +50 degree C (+32 to +122 degree F), Humidity indoor 20 to 95 percent. 1.5 volts AAA battery required but not included. Measures 88 mm width by 87 mm height by 17 mm depth. Available in silver colour.