Description: This Zigbee senosr and detector can not work standalone without gateway. Advanced Motion SensorPIR 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 FunctionWhen 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 TrackingYou can track the history of sensor activities. Strong Performance & Ultra-long Standby TimeLong transmission distance, high sensitivity, and strong network signal. Ultra-long standby time. Powered by 1pcs CR2450 batteries(include), can last for about 18 months. Specifications: Product name:ZigBee human motion sensor Product model :ZM-35ZH-Q Networking form: ZigBee3.0 Mesh Detection:120°distance Power input:Cr2450 button battery1.5 years,10 times per day working temperature:-10°C~45*C Product size:33mm*27mm Appearance packaging:White carton neutral packaging Package Included: 1 * PIR Motion Sensor 1 * User Manual Notes: This Zigbee senosr and detector can not work standalone without gateway.