Contact Sensor (2nd Gen)
Alarm Window and Door Contact Sensor expands your Ring Alarm system to secure each door and window in your home, and you can get alerts as soon as they open. Subscription required, sold separately.¹ ² ³
- Real-Time Notifications²
- Easy Installation
- Z-Wave Enabled
How to Factory Reset Your Ring Alarm Devices
Steps to factory reset your Ring Alarm devices.
Setting Up and Using Ring Alarm Contact Sensor
Find information on setup, use, specifications, installation, and troubleshooting for your Ring Alarm Contact Sensor.
Troubleshooting Contact Sensor (2nd Gen)
Understand Contact Sensor (2nd Gen) light patterns, troubleshoot connection issues, and more.
2.09 in X 1.12 in X 0.55 in
-4°F to 120°F (-20°C to 49°C)
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.
Z-Wave (250 feet range to Base Station open air, line of sight) (76 meter range to Base Station open air, line of sight)
Contact Sensor Help & FAQs
Helpful information and FAQs about the Ring Alarm Contact Sensors.
Tips for Installing Contact Sensor (2nd Gen)
Learn how to mount your Contact Sensor (2nd Gen) on a door or window with a unique design.
Installing Ring Alarm Contact Sensors on Different Types of Doors, Windows, and Trim
Learn how to properly install Ring Alarm Contact Sensors on different surfaces.
Troubleshooting Tampered Contact Sensors
Learn about the tamper switch on the Ring Alarm contact sensors and how to troubleshoot any issues.
Getting Started - Placing Sensors and Motion Detectors
Learn everything there is to know about placing sensors and motion detectors.
Updating the Firmware on Your Ring Alarm Devices
Learn how to update the firmware on Ring Alarm Devices.
Helpful Links for Ring Alarm Contact Sensor and Motion Detector
Links for Alarm Contact Sensors and Motion Detectors.
Ring Alarm Devices FAQs
Frequently Asked Questions about Ring Alarm Devices, answered.
Ring Alarm Z-Wave Technical Information
Find Z-Wave technical information links.
Contact Sensor False Alarm Tips
Discover useful setup tip for your Ring Contact Sensors to help you avoid false alarms.