Digital LCD Indoor Outdoor Temperature Thermometer Indoor Hygrometer Humidity Meter with Alarm Clock Function Large LCD Display simultaneously showing indoor or outdoor temperature and indoor humidity Clock and date automatic exchanging function, Week dispaly function, Selectable temperature unit: C or F Indoor temperature measurement range: -10C ~ + 50C, Outdoor temperature measurement range: -50C ~ + 70C,Resolution: 0.1C, Humidity: Indoor 20% ~ 99% 5% Recording Max/ Min Temperature and humidity value automatically Powered by one 1.5V AAA battery, Probe cable length: Approx. 2m, With desk top stand at back side