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Feature

Requires the Ring alarm base station
Get instant mobile alerts when doors or windows open in your home
Compatible with any iOS or Android device
Easy installation with no tools required
Mounts to door and window frames
3V lithium battery included

Description

Expand your Ring alarm kit and add an extra layer of security to your home with alarm contact sensors. The alarm contact sensor is easy to setup and installs in just minutes. Attach alarm contact sensors to any door or window frame in your home, arm your alarm system, and youll get instant alerts on your phone and tablet whenever they open.