High resolution LCD display: This digital meter displays temperature and humidity simultaneously. A large LCD screen with large digits ensures easy reading. Wide measuring range: Temperature measurement range: -50°C to 70°C with an accuracy of ±1°C; Humidity measurement range: 10% RH to 90% RH with an accuracy of ±5% RH. Application: This round digital thermometer hygrometer is suitable for measuring temperature and humidity in homes, baby rooms, offices, workshops, schools, markets, and warehouses. Battery installation: Slide the switch on the back of the product. Push the battery compartment cover in the direction indicated by the arrow. Insert the button cell battery into the compartment. Powered by 1 x LR44 battery. Customer service support available within 24 hours. Compact and portable design for easy carrying. Durable plastic construction for reliable performance. Specifications: Material: Plastic; Size: 45 x 15.5 mm; Color: Black; Temperature range: -50°C to 70°C; Humidity range: 10% to 99% RH; Temperature accuracy: ±1°C; Humidity accuracy: ±5% RH; Humidity resolution: 1% RH; Power supply: 1 x LR44 battery. Note: Due to lighting and screen setting differences, the item's color may vary slightly from the images. Slight dimensional variations may occur due to manual measurement. Package includes: 1 x Round Digital Thermometer Hygrometer