Protect four (4) windows or doors, add motion detection to one (1) hallway or room to cover areas like the front door, bedrooms, living rooms, or reception areas in your home or business. Receive real-time alerts in the Ring app when your sensors are triggered. Arm and disarm your system from the Keypad. For total peace of mind, get 24/7 Professional Monitoring with emergency police, fire, or medical support *with a compatible Ring Protect subscription, sold separately.