Ring Alarm and all Ring Alarm accessories require a subscription for in-app features and digital notifications, including digital arming / disarming and integration with other Ring, Echo, Alexa, and third party products. Subscription sold separately. View ring.com/protect-plans for pricing and details.
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 (excluding Quebec).
Ring Alarm Contact Sensors easily mount to any door or window frame in your home for easy, DIY installation. Subscribe to Ring Protect, sold separately, to connect them to your Ring Alarm or Ring Alarm Pro Base Station and receive mobile alerts from the Ring App whenever your doors or windows open.1 You’ll always be the first to know when something’s ajar.
Plus, if you’ve enrolled in professional monitoring2, you can choose to receive a call from the monitoring center when the Contact Sensor is triggered and request emergency assistance if needed.
Triggers your Alarm when someone tampers with Contact Sensors.
Tech Specs - Contact Sensor
2.09 in X 1.12 in X 0.55 in
Power and Connectivity
2 CR2032 Coin cell batteries
BATTERY WARNING: KEEP OUT OF REACH OF CHILDREN. Store spare batteries securely. Dispose of used batteries immediately and safely. If you think batteries might have been swallowed or placed inside any part of the body, seek immediate medical attention.
Uses two CR2032 batteries, included, which may last up to 3 years depending on usage. Cold temperatures may drain battery life faster.
32°F to 120°F (0°C to 49°C)
Z-Wave (250-foot range to Base Station open air, line of sight)
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.
1Ring Alarm and all Ring Alarm accessories require a subscription for in-app features and digital notifications, including digital arming / disarming and integration with other Ring, Echo, Alexa, and third party products. Subscription sold separately. View ring.com/protect-plans for pricing and details.
2A compatible Ring Protect subscription is required to enroll in the Ring Alarm professional monitoring service. Professional monitoring service is available only within the U.S. (all 50 states, but not U.S. territories) and in Canada (excluding Quebec). Ring does not own its own professional monitoring center. Smoke and carbon monoxide monitoring is not available for a business or commercially zoned address. See Ring Alarm licenses at: ring.com/licenses