Fangrui Product Details Humidity Meter With Moisture Level Symbol That Shows Dry/comfortable/wet Air Conditioning Quickly With Just A Glance. Ensures Adequate Humidity, For Monitoring Living Conditions And Family Health By Preventing Colds, Dry Skin, Asthma, Allergies, Mould, Etc. Clear Lcd Display, Easy To Read: Easy To Read From Any Angle And Distance. It Is Portable And To Take Anywhere. Time Display Supports Both 12-hour And 24-hour Formats, Thermometer Shows The Temperature In Fahrenheit Or Celsius. Temperature Measurement Range: -50-70temperature Resolution: 0.10.2f) Temperature Measurement Accuracy: 11.8) Humidity Measurement Range: Rh-rh Humidity Resolution: Humidity Measurement Accuracy: Rh Battery Used: Cr2032 Button Batteryx2 For Refrigerator, Counter, Living Room, Baby Room, Kitchen, Basement, Office, Greenhouse, Guitar Room, Office, Garden And Cellar. The Product May Be Updated Constantly ,due To Different Batches, The Actual Product May Have Slight Differences Or Color Differ