Thermometer/ Hygrometer ( With Clock) Main Characteristic: Temperature/ humidity Display Clock & Alarm Max/ Min Values 1. Measuring range : a. Temperature: -10C-50F( 14F-122F) ; b. Humidity: 20% -95% R.H. 2. Accuracy: a. Temperature: ? C( ? .8F) within 0C~ 35C( 32F~ 95F) , ? C at the remaining range. b. Humidity: 5% R.H.within 40% ~ 80% R.H., and 0C~ 35 ( 32F~ 95F) , 8% at the remaining range 3. Resolution: 0.1C( 0.1F) , 1% RH 4. Displaying maximum/ minimum values. 5. Clock and alarm function: 12/ 24 hour adjust, 8 minutes snooze 6. Unit Size: 108x100x22mm ; Display size: 80x60mm 7. Battery: 1.5V AAA( 7# )