Smart Digital Thermometer Hygrometer The mini digital humidity thermometer thermometer allows you to easily know the temperature and humidity of the environment around you. Temperature Measuring Range Temperature measuring range: -50 ~ 70 . Temperature measurement accuracy: 1 . The measurement conditions are refreshed every 10 seconds. Humidity Measurement Accuracy Indoor/Outdoor Humidity Measuring Range: 10%RH-99%RH . The humidity measurement deviation accuracy: 5%RH Small and Long Battery Life -This hygrometer thermometer (4.3 * 4.3 * 1.3cm, weighs only 21g.) Small, durable and portable enough to save space and carry around. Powered by CR2032 (battery included), battery life up to 12m Widely Application The hygrometer thermometer can be applicable to home, office, car, schools, hotels, laboratories, kindergartens, aquaculture, instrument workshop, libraries, schools, factories and places with air conditioning, etc.