SONOFF SNZB-03P is a low-power Zigbee 3.0 PIR motion sensor, using passive infrared sensing technology to detect movement based on heat signatures in real-time. Detecting movement in under 5 seconds, automatically turning lights on when you enter and off when you leave to save energy. Powered by a long-lasting CR2477 battery for over 3 years, it works with NSPanel Pro, iHost, ZB Bridge Pro, ZBDongle-E, Echo Plus, and other Zigbee 3.0 hubs. The SNZB-03P is also compatible with popular smart home platforms, including Home Assistant, Apple Home, Google Home, Alexa, and SmartThings. Local control smart scenes continue to run even if Wi-Fi is down. You can use it to trigger cameras, alarms, and push notifications upon unauthorized entry to enhance your home security.