Ring Alarm Window and Door Contact Sensor, 2nd Generation

10 items left

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


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

Battery 3V Lithium Battery Included
Battery Life ~3 Years
Connectivity Z-Wave (250-foot range to Base Station)

Mounting Mounts to Door and Window Frames
Maximum Distance Between Sensors 5/8 inches
Operating Conditions 32°F to 120°F (0°C to 49°C)
Setup Requirements Ring Alarm Kit