Fangrui Product Details 1. Magnetic Lcd Digital Aalarm Clock Large Screen With Temperature Humidity Display 2. The Unique Transparent Color Bar Quickly Indicates Drycomfortablehumid Air Conditions At A Glance. Ensure Sufficient Humidity, Ideal For Controlling Your Familys Living Conditions And Health, Preventing Colds, Dry Skin, Asthma, Allergies, Mold, Etc. 3. The Indoor Sensor Detects Changes In Temperature And Humidity Every 10 Seconds, Giving You Accurate Readings 4. Large Lcd Screen With Neat And Thin Edges, Easier To Read. 5. 3 Placement Ways: Built-in Strong Magnets, Can Be Directly And Firmly Fixed On The Metal Surface, Also Comes With A Stand To Place On The Tabletop, Or You Can Use Sticky Pads To Place Anywhere In The Living Room, Baby Room, Kitchen, Basement 6. Specification: 7. Main Functions: Clock Functiondate Viewing Functiontemperature And Humidity Displaytemperature And Humidity Maximum And Minimum Value Viewingalarm Clock Function 8. Temperature Range: -50 ~ 70 Degrees Celsius, Accuracy +-1 Degrees Celsius 9. Humidity Range: ~, Accuracy +- Rh 10. Power Supply Mode: 2 Cr2032 Button Batteries (built-in) 11. Dimensions: 90 X 70 X 16mm