Description: Large LCD display and backlight keeps measurement data for easy viewing or recording. Powerful battery design ensures long endurance, mute use and low consumption. 45 degree bracket design ensures stable placement, reading more convenient and fast. It is constructed of abs material. Back hole design makes it easy for hanging up and not take up space. It's not just a hygrometer, it has four functions in one, thermometer/hygrometer/time/alarm clock. It is suitable for bedroom, living room, office and so on. It supports key calibration temperature and humidity function, loss error is small, accurate display. Item Name: Hygrometer Material: ABS Working Voltage: 3.7V Humidity Test Range: 10% to 99% Battery Capacity: 300mAh (Included) Temperature Test Range: -10 to 65 Degrees Celsius Features: High Strength, Good Toughness, Wear Resistant Size Details: Size: 12.5cm x 7.7cm x 1.6cm/4.93" x 3.03" x 0.63" (Approx.) Notes: 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. Package Includes: 1 x Hygrometer