Qingping Lite LCD temperature and humidity sensor Temperature and humidity sensor with LCD display, Bluetooth connectivity and Xiaomi Mi Home application support . Desktop mode Open the stand and place the sensor on the desk Wall mode The built-in magnet allows you to attach the thermometer to a magnetic board or refrigerator. It can be rotated to adjust the angle. Brilliant display With an ultra wide viewing angle, it's easier to see the temperature and humidity in a room. Swiss Sensirion precision industrial grade sensor with fast response, accurate measurement. Low energy consumption, up to 1 year of battery life With Bluetooth function Automatically records temperature and humidity history data for up to 30 days (requires app connection) Set contains: 1 x Bluetooth thermometer and hygrometer (with button battery) 1 x wall sticker 1 x User Manual