TWIN PACK - 2 devices includedLarge LCD Screen & Backlight Function Indoor Digital Thermometer Hygrometer With Large LCD Screen & Backlight Function Making it Easier to Read in Dim Light Conditions and Simple Operation.Alarm Clock and Calendar Function Indoor Multifunctional Digital Hygrometer with Alarm Clock and Calendar Function is Convenient for Family and Office Life and Health.Multiple Mounting Options Wall Thermometer Features Tabletop and Wall-mountable Design, Convenient Mounting Feature for every Type of Room; ℉/℃ Selector; Powered by AAA Battery (Included).