Indoor outdoor hygrometer thermometer Exterior design: Picture Function: temperature, humidity, clock Battery: AAA Specification: 108* 100* 21mm Material: ABS Elaboration: 1.measuring temperature range: -10-+ 60C; 2.measuring humidity range : 10% -99% , 3.precision: temperature + / -1C; humidity + / -5% ; 4.C/ F rechange; 5.measure temperature in door or out door ; 6.clock; 7.three button work free; 8.packing: white box