1. Judge the opening and closing status through the magnetic induction on the door and window sensors. After connecting to the Bluetooth gateway, you can check the status of the device through your mobile phone anytime, anywhere
2. Connect to Mijia APP to record daily assistants
3. Bluetooth connection, can access built-in Bluetooth gateway products
4. Wireless connection: Bluetooth 5.0
5. Battery model: CR2032 (installed)
6. Working temperature: -10 Degrees Celsius to 50 Degrees Celsius
7. Working humidity: 0%-95%RH, non-condensing
8. Product size: 3.4x3.3x1.5cm