Help secure gates, sheds, garages, storage containers and outbuildings with Ring Alarm Outdoor Contact Sensor. Get real-time notifications when your outdoor gate opens, or set the sensor to automatically trigger your Ring Alarm siren when armed in Home or Away mode.

* Weather resistant and battery-powered.
* Easy installation.
* Requires Alarm Base Station.
* Compatible with 1st and 2nd generation Alarm devices and accessories.