With this digital hygro-thermometer you can measure temperature and humidity arounds, it has big size LCD display that shows time, temperature, and humidity. 3 rows of king-sized LCD display. 12/24 hours selected with alarm and integral alam function. Temperature type is changeable ( ℃/℉). Best for use in factory, storehouse, production, hospital, laboratory, computer room, etc. Displays time, temperature and humidity. Convert Celsius or Fahrenheit. Store the highest and lowest humiture. Powered by one AAA Battery (Batery incluede). Temperature range: 0 ~ 50°C (32-120℉) accuracy: 1.0°C. Humidity range: 30% -90% accuracy: ±8%.