About this item HIGH ACCURACY: TAKIT indoor thermo-hygrometer has a wide measurement range that can measure temperature between 0.0C and 50.0C (32 .0 and 122.0F). The temperature accuracy range is 1C (1.8F). The humidity sensor has a measuring range of 10% to 90%. The humidity measurement accuracy is 5%. PORTABLE AND MINI SIZE: You are looking for a mini indoor thermo-hygrometer that does not take up space and can be easily carried around a room to room? or even during your vacation? Looking for an ultra-simple thermometer? The TAKIT Thermohygrometer measures 76x82x21mm, 80g. Not only does it meet daily needs, but it doesn't take up much space. It is the ideal tool for on the go or for indoor use (office, bedroom, living room, terrace, etc.) REAL-TIME DISPLAY: The TAKIT thermo-hygrometer gives you the temperature and the Real-Time Humidity Records the minimum/maximum temperature and humidity since its last reset or since the last 24 hours. It can operate in either Fahrenheit or Celsius. EASY TO READ AND USE: TAKIT thermometer and hygrometer don't have a complicated function button. It has a clear digital display that is easy to read even from a great distance. With just three buttons below the screen, you can use Celcius/Fahrenheit, reset the tool, or view recorded min/max data. Works with 1 AAA battery (not included)