Real-Time Security Alerts Receive instant notifications on your smartphone whenever a door or window is opened or closed. Stay informed about your home's entry points in real-time, whether you're at home or away. Seamless Aqara Hub Integration Designed to work exclusively with the Aqara Hub M2 (sold separately), this sensor utilizes Zigbee 1.2  for stable and reliable communication. Note: Not compatible with hubs from other brands. Easy Installation and Setup No complex wiring required. The Aqara Door and Window Sensor features a compact design with adhesive backing for quick mounting on various surfaces. Ensure a flat surface and a maximum gap of 0.86 inches for optimal performance. Long-Lasting Battery Life Powered by a durable CR2450 battery, this sensor offers up to 2 years of reliable performance. Minimize maintenance with extended battery longevity, ensuring your security system remains active. Voice Control Compatibility Enjoy hands-free operation with Apple HomeKit and Alexa integration. Control your sensor and automate routines using voice commands for a more convenient smart home experience. Note: Requires Aqara Hub M2 and is not compatible with SmartThings.