Mini Digital LCD Thermometer Hygrometer Humidity Temperature Meter Indoor Tester Features: LCD digital display. Compact design, easy to carry. Digital hygrometer and Celsius temperature reading. A wonderful assistant for you to get timely temperature and humidity. Can be widely used in home, office, car, hotels, laboratories, etc. Specifications: Measuring humidity range: 10%-99%RH Measuring humidity accuracy: ±5% Humidity display resolution: 1%RH Humidity sampling period: 10s Measuring temperature range: -50℃-70℃ Measurement temperature accuracy: ±1℃ Temperature display resolution: 0.1℃ Install panel hole size: D42mm Rated voltage: DC1.5V Powered by: 1 x LR44 button cell (Included) Size: (4.5 x 1.5)cm(D x H) Color: Black Package includes: 1/2/4/10/20 x Digital Hygrometer Thermometer