Preciser(TM) Multi-function Indoor Room LCD Electronic Temperature Humidity Meter Digital Thermometer Hygrometer Weather Station Alarm Clock ADVANTAGE:Display temperature, humidity and time simultaneously,12-hour / 24-hour displaying system selectablepress 'MOOD', 'ADJ', 'MEMORY' button to switch and adjust the LCD thermometer and hygrometer. Clear. RANGE AND ACCURACY: measures temperature range -10~50, accuracy 1/1.8F; measures humidity range 10%~99%RH, accuracy 1%RH. INSTRUCTION: Easy to read and operatethe clock can be hung on the wall and set on desktop or countertop SIZE: 10*9.3*2CM POWER SUPPLY: It is powered by 1*AAA battery(included)