Amazon.com: Philips Hue Secure Smart Contact Sensor, White - 2 Pack - Made for Indoor Doors and Windows - Requires Hue Bridge - Works with The Hue App : Everything Else
Philips Hue Outdoor Motion Sensor - Automatic Dusk to Dawn - Turns Lights On When Motion is Detected - 1 Pack - Requires Bridge - Works with Alexa, Google Assistant, and Apple Homekit - Weatherproof - Amazon.com
Philips Hue Motion Sensor in White | NFM
Best Buy: Philips Hue Motion Sensor 473389/464602
wall mount for Philips Hue 570977 Motion sensor Indoor use (no drill, no damage) | eBay
PHILIPS HUE Motion Sensor Unboxing and Setup for Beginners - YouTube
Philips Hue Dusk-to-Dawn Outdoor Motion Sensor for Smart Home, Wireless & Easy to Install (Hue Hub Required, for use with Philips Hue Smart Lights) (Renewed)