Aqara Zigbee Door and Window Sensor 3 Pack, Wireless Mini Contact Sensor, Home Automation, Requires Aqara Hub, Zigbee Connection, Kid Safety, Compatible with Apple HomeKit, Alexa, Works with IFTTT

From the brand

As a leading provider of smart home solutions, Aqara excels in delivering a wide array of award-winning, user-friendly smart home products and platform solutions tailored for your home. We proudly serve over 12 million customers in more than 170 countries and territories. Our products are designed to offer convenience, security, and energy efficiency, making your home smarter, more sustainable, and adaptive to your evolving needs.

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[Notes] An Aqara Hub is required and sold separately. (Not compatible with hubs from other brands.) Requires a secure 2.4GHz Wi-Fi connection for Hub M2, M1S, E1, M1S Gen2, G2H Pro, and G2H; or 2.4/5GHz Wi-Fi for Camera Hub G3. (Hub M2 also supports wired Ethernet via RJ45.)(*Note: To ensure a stable connection, place the Door and Window Sensor main unit between the accessory unit is no more than 22 mm )
[Proximity] For a sturdy connection, ensure that the Aqara Door and Window Sensor is within 400 inches of the Aqara Zigbee hub, and the hub is within the same range from the Wi-Fi router. Additionally, make sure the hub and the router are on the same local area network (LAN). Zigbee2MQTT and comparable third-party USB dongles are not officially supported by Aqara. Full product functionality may be limited or unavailable.
[Unauthorized Entry Detection & Home Automation] The Zigbee Door Sensor alerts your phone and triggers the Aqara Hub’s local alarm upon unexpected door/window openings. It also controls other Aqara devices based on door/window status. Conveniently check your door or window, kids room and anywhere you want to be notified. ***Requires Aqara Hub，not third-party hub.
[0.86 Inch Wide Gap Allowed]The Aqara Door and Window Sensor works with most types of doors, windows, and other fixtures with similar mechanism, such as drawers, cabinets, and more.(Note: Please ensure that the surface where you plan to stick the Aqara Zigbee Door and Window Sensor is flat and easily adhesive, and the allowed gap between the door is up to 0.86 inch.) The main sensor unit dimension:1.61*0.87*0.43 inch, the magnet dimension:0.79*0.39*0.39 inch.
[Hands-Free Voice Control]Compatible with Apple HomeKit, Alexa for a hands-free experience.- no need to go downstairs or pick up your phone again. You’ll always know whether your home door is opening or closing (The Aqara Door and Window Sensor is not compatible with SmartThings currently.)