Features: 1. Home hygrometer, data can be clearly read in various brightness and angle. 2. High sensitivity and accurate sensirion from Switzerland, sense subtle change of temperature and humidity a breath away. 3. An expression to spell over comfort level, cute and simple. 4. Low consumption screen, a CR2032 button battery for one-year. 5. Built-in advanced Sensirion temperature and humidity sensor, temperature accuracy: 0.1 degrees, humidity accuracy: 0.1 percent RH 6. Via Mi app to switch on humidifier when indoor humidity is too low and air-conditioner when indoors temperature is too high LED digital display, you can get temperature, humidity easily Package included: 1 x Xiaomi Mijia Thermometer Hygrometer 2 1 x Wall Sticker 1 x Use Manual