Ring® Alarm Window and Door Contact Sensor, 2nd Generation

In stock

Expand your Ring Alarm system to secure each door and window in your home, and get alerts as soon as they open.
*Requires the Ring Alarm Security Kit.

Make Sure the Doors and Windows Are Shut

Ring Alarm Contact Sensors easily mount to any door or window frame in your home for easy, DIY installation. Connect them to your Ring Alarm Base Station and receive mobile alerts from the Ring app whenever your doors or windows open. You’ll always be the first to know when something’s ajar.



  • Requires the Ring Alarm Security Kit
  • Triggers your Alarm when someone tampers with Contact Sensors



Power and Connectivity
Power 2 CR2032 Coin cell batteries
Battery Life Uses two CR2032 batteries, included, which may last up to 3 years depending on usage. Cold temperatures may drain battery life faster.
Connectivity Z-Wave (250-foot range to Base Station open air, line of sight)
Operating Conditions Indoor Use
Mounting Mounts to doors and windows
Maximum Distance Between Magnet and Sensor 1 inch. Leave 1/2″ space on non-magnet side to access battery compartment.
Setup Requirements Ring Alarm Kit
Warranty 1 year limited warranty
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