Philips Hue Motion Sensor + White Ambiance A19 LED Smart Bulb 2-Pack, Compatible with Alexa, Apple Homekit and Google Assistant, Bluetooth Compatible, Motion Sensor Requires Bridge - - Amazon.com
Review: Philips Hue Outdoor Sensor Is the First HomeKit Outside Motion Detector - YouTube
Philips Hue Outdoor Sensor review: Trigger Hue lights and HomeKit gadgets with this $50 sensor - CNET