1、Dual Screen Display: With dual screen display, temperature and humidity can be displayed separately, which is convenient for recording and measurement. 2、LCD Screen: Using LCD screen, the screen display is clearer, and reading is more convenient. 3、Digital Storage Function: With digital storage function, it can store test data within a certain range, which is convenient for you to compare temperature changes at different times. 4、High Low Temperature Automatic Alarm: With high and low temperature automatic alarm function, you can set any high temperature and low temperature alarm range. 5、Uses: Wide range of applications and can be used to detect home temperature and humidity, and can be used in living rooms, bedrooms, etc. Item Type: Digital Thermometer Hygrometer Material: Plastic Product Size: Approx. 8 x 7 x 1.6cm / 3.1 x 2.8 x 0.6in Battery Parameters: 1 x LR44 Button Battery ( Battery Not Included) Temperature Measurement Range: -40℃ To 120℃ Humidity Measurement Range: 20%RH to 95%RH Function: Temperature, Humidity Display; ℃/℉ Temperature Switch Display; High and Low Temperature Automatic Alarm Function (Default High Temperature is 28℃, Low Temperature is 18℃, and Any High Temperature and Low Temperature Alarm Range Can Be Set) Weight: Approx. 81g / 2.9oz 1 x Digital Thermometer Hygrometer (Battery Not Included) 1 x Cable 1 x English User Manual