The Alarm Contact Sensor connects to your Alarm Base Station and easily mounts to any door or window frame in your home. It sends you mobile alerts whenever your doors or windows open, so you’ll always be the first to know when something’s ajar.

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

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. 

Alarm Contact Sensor

  • Power

    3V Lithium Battery Included

    Battery Life

    ~3 Years

    Operating Conditions

    32°F to 120°F (0°C to 49°C)


    3.23 in. x 0.98 in. x 0.94 in. (8.2 cm. x 2.5 cm. x 2.4 cm.)


    Z-Wave (250-foot range to Base Station)


    Mounts to Door and Window Frames

    Maximum Distance Between Sensors

    5/8 inches

    Setup Requirements

    Ring Alarm Kit


    1 year limited warranty