High resolution LCD display: This digital meter displays temperature and humidity simultaneously. A large LCD with large digits ensures easy reading. Wide measuring range: Temperature measurement range: -50C to 70C with an accuracy of 1C; 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 to open the battery compartment in the direction indicated by the arrow. Insert a button cell battery into the compartment. Powered by 1 x LR44 battery. Customer support: Our customer service team is available to assist within 24 hours. Design: Compact and portable design for easy carrying. Made from high-quality plastic material for durable performance. Specifications: Material: Plastic Size: 45 x 15.5 mm Color: Black Temperature range: -50C to 70C Humidity range: 10% to 99% RH Temperature accuracy: 1C Humidity accuracy: 5% RH Humidity resolution: 1% RH Power supply: 1 x LR44 battery (included) Note: Due to differences in lighting and screen settings, 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