SMART DIGITAL THERMOMETER HYGROMETERmini digital temperature and humidity meter is small and exquisite, only 4.3*4.3*1.3cm, 21g.It has 2 types of icons.When the humidity is between 40% and 70%, it will show a smiling face.When the humidity is below 40% or above 70%, it will display unhappy, allowing you to keep your home healthy and comfortable at a glance.TEMPERATURE MEASUREMENT RANGETemperature measurement range: -10~70.Temperature measurement accuracy: 1.The measurement conditions are updated every 10 seconds.HUMIDITY MEASUREMENT ACCURACY]Indoor/outdoor humidity measurement range: 10% RH to 99% RH.The deviation accuracy of humidity measurement: 5% RH.SMALL AND EXQUISITE4.3*4.3*1.3cm, weighs only 21 grams.About the size of an egg, this hygrometer thermometer is compact and durable enough to save space and take it with you anywhere.Powered by CR2032 (battery included).WIDE APPLICATIONThe thermometer and hygrometer can be used in homes, offices, automobiles, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshops, libraries, schools, factories and air-conditioned places.