As long as there is movement, the mobile phone receive a prompt message, no matter where you are, the human presence sensor that makes your home and family and makes you more smart pir motion sensor Brightness sensor with USB power supply ( USB Battery together) This smart pir motion sensor can be intelligently linked by first connecting the zigbee gateway to the mobile phone APP tuya smart or smart life. For example, it can be set on the APP that when someone passes by, the sound and light alarm sound. Specifications: Dual Power Battery & USB Tuya ZigBee PIR Sensor With Illumination Sensing Detect Human Movement And Lux Sensores Home Security smart life pir sensor detector with long sensing distance and wide angle.zigbee motion sensor works with assistant smart home, Weight: 0.13558429113 pounds, Manufacturer: puhae