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