♦Advanced Motion Sensor, 120° detection angle, 5m detection distance, can achieve real-time monitoring day or night. ♦Emergency Alert Push Function,When there is movement detected, the alert notifications will be pushed to your phone, be aware of what's happening at home even when you're away. ♦History Records Tracking,You can track the history of sensor activities. ♦Strong Performance & Ultra-long Standby Time,Long transmission distance, high sensitivity, and strong network signal. Ultra-long standby time.