Check the listing for details. Google Nest Detect Sensor - Door, Window, Room Motion (Nest Secure) H1100WES. Color: White, Condition: New. Listed at 119.99 USD. BRAND NEW in Original SEALED Retail Packaging Nest Detect Sensor H1100WES SHIPS USPS Priority Mail Additional Nest detect sensor for the Nest secure alarm system. Keep track of more doors, rooms and Windows. 1-sensor can detect 2-things: when a door or window opens and when there's motion in a room. Stick it on a door. You'll know when it opens and closes and if there's motion in the room. Stick it on a window. You'll know when it opens and closes. Stick it on a wall. You'll know when there's motion in a room. Open quietly. When the house is armed, just press the button to open a door. The alarm stays quiet and the house stays armed.If your Nest secure is armed, the alarm will soundTurn on dog pass so your small dog can move around freely without setting off the alarmWalk by Nest detect at night and path light helps you find your way in the darkEasy to install yourself - no drilling holes or connecting wiresNest app helps you set up Nest detect and Nest Guard and shows you where to place it on doors, windows and walls