5-Sec Faster Detection Automatically turn the lights on immediately when you pass by, and turn off the light after you leave, the shortest time can reach 5 seconds, helping you save energy. 3-Year Battery Life Powered by CR2477 battery extends the battery life to over 3 years, eliminating concerns about frequent battery replacements. Zigbee 3.0 Compatible Supports Zigbee hubs using the Zigbee 3.0 protocol, such as SONOFF NSPanel Pro, SONOFF iHost, SONOFF ZB Bridge Pro, SONOFF ZBDongle-E, and Echo Plus 2nd Local Smart Scene Even if your WiFi network crashes, you can still activate Zigbee local scenes as long as your Zigbee devices are powered on. Home Security SNZB-03P can also be used for security purposes such as detecting unauthorized entry. It can trigger a camera to record a video, activate a sound alarm through the gateway, and send app notifications to alert you, and ensure the safety of your family and property. Note : SNZB-03P needs to be used with Zigbee Hub.