1. Material: Plastic 2. Function: time, alarm clock, countdown conversion setting and snooze during alarm 3. Temperature detection: -9.9 degrees Celsius—+70 degrees Celsius 4. Relative humidity detection: 20%-99% 5. Power supply: Use one CR2032 (not included) 6. The time and alarm clock can be set to switch between 12/24 hours 7. A variety of placement methods, built-in strong magnet can be adsorbed on the metal 8. There is a convection hole on the back, which is sensitive to ensure the accuracy of measurement 9. Remove the screws on the back and open the battery cover to insert the button battery 10. Weight: 69 grams 11. Dimensions: 9.3x1.2x6.7 cm
