Aqara Door and Window Sensor Kit 3pcs (Aqara Hub is Required), Zigbee, Wireless Mini Contact for Alarm System Smart Home Automation, Compatible With Apple HomeKit, Alexa, Works IFTTT

【Broad Compatibility】When connected to an Aqara hub, it works with Apple Home, Amazon Alexa, and Google Home, and supports Home Assistant via Matter (Aqara Matter-certified hub required). Automate lights when a door opens, trigger alerts when doors or windows are opened, and receive real-time app notifications. 【Reliable Open/Close Detection】Precisely detects open and close status using magnetic sensing, helping you monitor doors, windows, garage doors, cabinets, and safes. Ideal for everyday home security awareness, especially at night or when you’re away. 【Local Automations via Aqara Home】When connected to an Aqara hub, the sensor supports local automations between Aqara devices, ensuring key scenes continue to function even during temporary network interruptions. 【Long Battery Life & Low Maintenance】Designed for energy efficiency, the Aqara Door and Window Sensor is powered by a CR1632 battery, delivering over 2 years of battery life under normal use, reducing the need for frequent battery replacements and ensuring dependable long-term performance. 【Easy Installation with Precise Alignment】Installs in minutes using strong adhesive—no tools or wiring required. Supports a maximum installation gap of 2.2 cm (0.86 inch) between the sensor and magnet, making it compatible with most doors, windows, balconies, wardrobes, and drawers.