The rCMS family of nLight AIR-enabled wireless ceiling/surface mount occupancy sensors provide a range of sensor solutions for applications with finished ceilings (e.g. ceiling tiles, sheetrock, plaster). The rCMS family sensors utilize digital Passive Infrared (PIR) detection and are available with several lens options, providing flexibility for multiple mounting height and coverage pattern requirements. Dual technology occupancy detection can also be added as an option for applications where occupants are stationary for long periods of time. All sensors have integrated on/off photocells, with automatic daylight harvesting/dimming control standard. Additionally, the rCMS family sensors are also available with an optional auxiliary low voltage relay for simple integration with a BMS system or other building system. The rCMS family sensors are powered by an nLight AIR Power Pack (rPP20) or by a 24 VDC supply (PS150). rCMS family sensors typically communicate with one or more nLight AIR-enabled fixtures or power packs to enable control of fixtures individually or in groups. As part of the nLight AIR wireless controls family, the xxx uses a 900MHz communication frequency that easily penetrates obstructions and its five-tier security architecture helps building owners and occupants rest easy. Generation 2 compatibility.