RING Alarm Motion Detector (2nd Gen) - compact and discrete. Place a Ring Alarm Motion Detector in each room of your home to get instant mobile notifications when motion is detected. Featuring a more compact design for discreet placement in your home and easy tool-free installation. Requires Ring Alarm Base Station (see item VS6GK). Compatible with 1st and 2nd generation Ring Alarm devices and accessories. Battery - 2x AA batteries. Connectivity - Z-Wave (76m range to Base Station open air, line of sight). Mounting - Mounts to room corners or flat walls.