Alarm Window and Door Contact Sensor - White: Ships 4/29
Alarm Window and Door Contact Sensor - White: Ships 4/29

Alarm Window and Door Contact Sensor


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

FREE Expedited Shipping on Orders over $49

*Requires the Ring Alarm Security Kit.

*Ring Alarm and the professional monitoring service are available and ship only within the U.S. (excluding American Samoa, Guam, Northern Mariana Islands, Puerto Rico, and the U.S. Virgin Islands) and Canada.

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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

Tech Specs

Size Arrow Icon

1.56 X 2.09 X 0.55 in

Power and Connectivity Arrow Icon

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.

Operating Conditions

32°F to 120°F (0°C to 49°C)


Z-Wave (250-foot range to Base Station open air, line of sight)

Installation Arrow Icon
Operating Conditions

Indoor Use


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

General Arrow Icon

1 year limited warranty