Leave sliding doors and windows cracked open for ventilation and still have security with Open Window Magnets for Ring Alarm.

* Triggers your Alarm when someone tampers with Contact Sensors.
* Requires the Ring Alarm Security Kit.
* Intended for use with the Ring Contact Sensor (sold separately).
* Open Window Magnet 2nd Gen is already included with the Contact Sensor 2nd Gen. This is only needed as an additional or replacement.