【APP Remote Control】Simple download APP Smart Life/Tuya on iOS and Android to add the device to detect the human body movement, no hub required. Home security in your hand all the time..【Advanced Motion Sensor】PIR detects human body or animals that are moving, 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】Compatible with IFTTT. Simply use your voice to control the connected devices. 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. Powered by 3pcs 1.5V batteries(not included), can last for 5-6 months.