and High Quality! [Advanced Motion Sensor]PIR detects human body or animals that are moving, 120 degree 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 even when you're . [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. Powered by 1pcs CR2450 batteries(not included), can last for about 18 months. Product name:ZigBee human motion sensor Product model :-35ZH-Q Networking form: ZigBee3.0 Mesh working temperature:-10~45 Notes: This Zigbee senosr and detector can not work standalone without gateway. colour: white Material: plastic Package Contents: 1 x Motion Sensor Only the above package content, other products are not included. Note: Light and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.