Aqara Zigbee Door and Window Sensor 1 Pack, Wireless Mini Contact Sensor | Home Automation, Requires Aqara Hub, Zigbee Connection, Kid Safety, Compatible with Apple HomeKit, Alexa, Works with IFTTT

[Notes]An Aqara Hub is required and sold separately.(NOTE:Not support hubs from other brands.) Requires a secured 2.4 gigahertz Wi-Fi network connection for Hub M2/ M1S/ E1/M1S Gen2 and Camera Hub G2H Pro/ G2H, and 2.4/ 5 GHz Wi-Fi for Camera Hub G3.(Wired connection via Ethernet RJ45 for Hub M2 is also supported)