Aeotec Multisensor 6 Recessor. In-Ceiling And In-Wall Recessed Installation Accessory.MultiSensor 6 is only 1.65 inches in size. With Recessor it gets even smaller. Recessor allows Aeotec? Z-Wave Plus Multisensor 6 to be installed within a ceiling or wall cavity. Once installed it? only invisible, emerging only 0.47?rom the wall or ceiling. Despite..