Features: 1Applicable for home, office, car, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshop, libraries, schools, factories and places equipped with air condition, etc. 2Fahrenheit (F) or Celsius (C) conversion, Temperature accuracy +/1C(+/2F), Humidity accuracy +/5%RH. 3This portable hygrometer thermometer Measures Indoor humidity and temperature in time, help to adjust the humidifier, dehumidifier settings and humidistats, great for monitoring family's living conditions and health by preventing colds, dry skin, asthma, mold. 4Fast response that measures every 10 seconds with 24 sensitive VENTS to provide updated and accurate readings, wide measuring range: work temperature from 0 to 70(+32F ~ +158F), work humidity from 10% to 99% RH. 5Mini round digital humidity thermometer allows you to easily know the environment temperature and humidity. Small, Durable and Portable enough for saving space and carrying around. Specifications: Mcasunng Humidity Hangc:20%Rh90%Rh Humidity Accuracy:+5%Rh Humidity Display Resolution:1%Rh Measurimg Lemperature Range:50C70(58F158F) Lemperature Accuracy:1 (2F) Lemperature Display Resolution:0.1(0.2F) Operating Voltage:1.5v Two Button Cell Size Lr44 Dimension:48mm*28.6mm*15.2mm Lcd Dimension:46mm*27mm Package list: 1 * Thermometer HygrometerBattery not included