5-Sec Faster Detection: Automatically turns the lights on immediately when motion is detected and turns them off after you leave, with a minimum delay of 5 seconds to help save energy. 3-Year Battery Life: Powered by a CR2477 battery, it provides over 3 years of operation, reducing the need for frequent battery replacements. Zigbee 3.0 Compatible: Works with Zigbee hubs that support the Zigbee 3.0 protocol, including SONOFF NSPanel Pro, SONOFF iHost, SONOFF ZB Bridge Pro, SONOFF ZBDongle-E, and Echo Plus 2nd generation. Local Smart Scene: Enables local automation through Zigbee; scenes can still run even if your Wi-Fi network is down, as long as Zigbee devices remain powered. Home Security: Can detect motion for security purposes, such as triggering a camera to record, activating an alarm via the hub, and sending app notifications to alert you, helping protect your home and property. Note: SNZB-03P requires a compatible Zigbee hub to function.