Feature: 1. Dual Screen Display: The hygrometer indoor adopts dual screen display, which can display temperature and humidity separately, which is convenient for recording and measurement 2. LCD Screen: The hygrometer indoor is an LCD screen, which makes the screen display clearer and easier to read 3. Digital Storage Function: The hydrometer digital has a digital storage function, which can store test data within a certain range, which is convenient for comparing temperature changes at different times 4. Convenient and Practical: The hydrometer digital helps improve your planting or home experience by viewing indoor and outdoor temperature and humidity 5. Supported Functions: The room thermometer has indoor/outdoor temperature, indoor humidity display, ℃/℉ temperature switching display, high and low temperature memory function Specification: Item Type: Hygrometer Indoor Material: Plastic Product Size: Approx. 8 x 7 x 1.6cm / 3.1 x 2.8 x 0.6in Battery Parameters: a LR44 Button Battery (Battery Not Included) Temperature Measurement Range: Indoor Temperature: -10℃ to 50℃(+14℉ to +122℉) Outdoor Temperature: -50℃ to 70℃ (-58℉ to +158℉) Humidity Measurement Range: 20%RH to 90%RH Basic Skills: Indoor/Outdoor Temperature, Indoor Humidity Display ℃/℉ Temperature Switch Display Indoor and Outdoor High and Low Temperature Memory Function Weight: Approx. 81g/2.9oz. Package List: 1 x Hygrometer Indoor (Battery Not Included)1 x Cable1 x User Manual Note: Shipped Without Battery