Product Descriptiondescribe:Indoor and outdoor temperature, indoor humidity display. C or F temperature switch display, comfort level display.The maximum and minimum temperature memory inside and outside.Automatic storage of the highest or lowest room temperature and humidity values.Comes with a backrest for easy placement. The built-in sensor measures the temperature at the same time.Specification:Room temperature: 0C to 50C or 32F to 122FOutdoor temperature range: -50C to 70C or -58F to 158FIndoor humidity: 20 percent RH90 percent RHRequires 1 AAA battery (not included)Sensor cable length: about 90 cm or 35.4 inchesProduct weight: 66 g or 2.32 ozPower supply: powered by 1 AAA battery (battery not included)Package Included:1 x Digital LCD Thermometer HygrometerNote: The battery is not included. Note: Due to the light and screen setting difference, the item's color may be slightly different from the pictures. Please allow slight dimension difference due to different manual measurement. Sold by-YJL official store