Ring Alarm Contact Sensor (Base Station Required) 2nd Gen

Ring Alarm Motion Detector (2nd Gen) Features: Get instant mobile alerts when doors and windows open in your home. Now smaller to enable increased placement options. Easy installation with no tools required. See more. Know more. Protect more – Record 24/7 on your eligible cameras, scroll back in time to rewatch what you missed, get alerts for people and packages, and so much more with a compatible Ring Home subscription (sold separately). Includes two 3V CR2032 batteries. Requires the Ring Alarm Base Station.