The Ring Alarm security kit (2nd Gen) is ideal for small homes up to 1,000 sq. ft. Protect four windows or doors, add motion detection to one hallway or room to cover areas like the front door. Receive real-time alerts in the Ring app when your sensors are triggered. Arm and disarm your system from the keypad. Plus, get 24/7 Professional Monitoring 1 with emergency police, fire, or medical support 2 .