Large LCD display simultaneously showing indoor and outdoor temperature and indoor humidity Automatic clock and date exchange function 2 time display modes: 12h/24h performance week Install an outdoor temperature sensor, automatically display indoor and outdoor temperature alternately in 5 seconds °C/°F temperature unit selectable MAX/MIN temperature and humidity recording With rear bracket and hanging hole at the rear Temperature range: -10 °C ~ 50 °C/14 °F ~ 122 °F (Interior) -50 °C ~ 70 °C/~ 158 °F-58 °F (exterior) Humidity range: 20% ~ 90% RH Resolution: Temperature: 0.1 °C (0.1 °F) humidity: 1% RH Accuracy: Temperature: ± 1°C (1.8°F) Humidity: ± 5% RH(40%-80%) Storage conditions: -20°C-60°C Buttons: Mode, ADJ, MAX/MIN, °C/°F Power supply: 1pcs 1.5V button battery (Not included) Dimensions: 90*58*15mm Colour: white and blue Unit Net Weight: 63g Package 1 x KT-908 Hygrometer Thermometer 1 x Cable