Ring Alarm Contact Sensor (2nd Gen) (2-Pack) White 4SD2SZ-0EN0 - Best Buy

Ring Alarm Outdoor Contact Sensor B0923BK77S - The Home Depot

Ring Alarm Contact Sensor 2-pack (2nd Gen) : Tools & Home Improvement

Ring Alarm Door/Window Contact Sensor (2-Pack) (2nd Gen) 4SD2SZ-0EN0 - The Home Depot

Ring Alarm Door/Window Contact Sensor (2-Pack) (2nd Gen) 4SD2SZ-0EN0 - The Home Depot

alarm system - Best Buy

Ring Alarm Door/Window Contact Sensor (2-Pack) (2nd Gen) 4SD2SZ-0EN0 - The Home Depot

Ring Alarm Contact Sensor (2nd Gen) (2-Pack) White 4SD2SZ-0EN0 - Best Buy

When armed, the Ring Alarm security kit sends notifications to your phone and tablet whenever doors or windows open and when motion is detected at home. It's fully customizable and expands to fit any house or apartment.

Ring Alarm Security Kit- 5 Piece (2nd Gen)

Help secure outdoor gates, sheds, guesthouses, and windows with Ring Alarm Outdoor Contact Sensor. Get mobile alerts when your outdoor gate opens, or set the sensor to automatically trigger your Ring Alarm siren when armed in Home or Away mode. Outdoor Contact Sensor comes with mounting tape and screws for easy installation on most surfaces. (**) Get mobile alerts when your outdoor gates, sheds, storage containers, or windows open or close.

Ring B09BXZ6YX8 Alarm Outdoor Contact Sensor (2-Pack)

Ring Alarm Pro Wireless Security System, 14 Piece Kit with Built-in Wifi Router(2nd Gen) B08HSVCB5M - The Home Depot

Ring - Alarm Contact Sensor (2nd Gen) (2-Pack) - White, P.C. Richard & Son