Philips Hue Secure Smart Contact Sensor, White - 2 Pack - Made for Indoor Doors and Windows - Requires Hue Bridge - Works with The Hue App

SECURITY THAT WORKS WITH YOUR PHILIPS HUE LIGHTS: Hue Secure sensors integrate seamlessly with your existing Philips Hue lights; When motion is detected, your lights can turn on automatically.
STAY IN THE KNOW, WHEREVER YOU ARE: Get real-time motion notifications sent directly to your phone. Trigger alarms right from the Hue app.
ONE APP, COMPLETE CONTROL: Control your Hue lights, cameras, sensors, and security notifications from a single app. The Hue app puts your entire smart home security system in the palm of your hand.
SUPREME PEACE OF MIND - When armed, the contact sensors send a real-time alert to your mobile device- and can even turn on lights as soon as they are triggered.
AUTOMATE YOUR LIGHTS - The contact sensors are perfect for frequently used areas. Have the hallway light turn on when the front door opens, for example.