Aeotec MultiSensor 6 Recessor. In-ceiling and in-wall recessed installation accessory. Install MultiSensor 6, Z-Wave motion sensor, within a wall or ceiling cavity Enables recessed, near invisible installation of MultiSensor 6 Sensor can continue to be powered either by battery or mains power via USB Allows for easy removal of MultiSensor 6 for changing batteries if battery powered Simple, spring-loaded installation