Usage:Household Theory:Temperature Sensor Function(1):Indoor temperature and humidity display Function(2):C/F temperature switch display Function(3):Maximum/minimum temperature and humidity memory function Function(4):12/24 hour clock Function(5):The whole point timekeeping function Function(6):Daily alarm function ,calender display Humidity measuring range:10%RH-99%RH Dimensions:106*98*22mm Battery:1.5v(AAA)*1 Packing:100sets/box,50sets/carton Show More