The Aqara motion sensor just might be the best motion sensor for Apple HomeKit. It works great in HomeKit and can even be used as a part of you HomeKit security alarm system. It connects to HomeKit through the Aqara hub. Places to find Aqara motion sensor and other Aqara products:

Aqara Motion Sensor on Amazon: https://amzn.to/2Y6wcUz

Aqara Hub on Amazon: https://amzn.to/2JVTiYJ

Aqara Motion Sensor on Gearbest: https://www.gearbest.com/alarm-system…