Ultra-long Battery Life:Low-power ZigBee sensor supports up to two years of battery life, ensuring your smart security guard is always online. Check History Records:Records of motion or no motion status, as well as linkage logs, be presented in the history records of App to monitor the safety of your home in real time. Right Place, Right Convenience:By placing smart sensors in different locations, changes in different locations can be monitored. At the same time, it supports linkage with smart devices to protect every corner of the home. Customize Your Own Smart Scenarios:Seamless integration with smart home systems for automated responses to detected events.When a person is detected, a real-time notification be sent to the mobile phone. Then, 60 seconds after is detected, a notification be sent also. Different smart linkages can be performed according to the two states, such as the smart light automatically turns on when there is human motion, and automatically turns off when no human motion. Notice before purchase NOTE: ZigBee gateway is required, please purchase in addition. You can attach the base to any location you need with the included stickers, or drive the complimentary expansion screws into the wall and hang the base , simple and efficient. Colour:White Material:ABS Package Contents: 1 x Human body sensor Only the above package content, other products are not included. Note: Light reflection 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.