Problem Explanation：
1. Mi Motion Sensor can detect all moving objects that emit heat. Pets may be detected if they pass by,false alarm may occur. If there are pets, it is not recommended to turn on the Mi Motion Sensor alert mode. You can only turn on the door and window sensor alert mode to avoid false alarm.
2. If the Mi Motion Sensor is placed in an environment close to a heat source, such as a microwave oven, air conditioner or strong light, false alarms may occur.