【5-Second Fast Detection】Automatically turns lights on within 5 seconds when you pass by and switches them off after you leave, helping to save energy efficiently.【Long-Lasting 3-Year Battery Life】Powered by a CR2477 battery, offering over 3 years of reliable use without frequent replacements.【Zigbee 3.0 Compatible】Compatible with Zigbee 3.0 hubs such as SONOFF NSPanel Pro, SONOFF iHost, ZB Bridge Pro, ZBDongle-E, and Echo Plus 2nd Gen.【Local Smart Scene Functionality】Zigbee scenes continue to operate locally even if your WiFi network goes down, as long as devices remain powered.【Enhanced Home Security】Detects unauthorized entry and can trigger cameras to record, sound alarms via the gateway, and send instant app notifications to keep your family and property safe.