The Radio Powr Savr™ Wireless Daylight Sensor is a battery-powered, ceiling mount sensor which saves energy by dimming or turning off electric lighting when sufficient daylight is available. The sensor detects light in the space and then wirelessly transmits the appropriate commands to the compatible dimming and switching devices via Lutron Clear Connect™ Radio Frequency (RF) technology; those controls then adjust the lights to take advantage of daylight. The Radio Powr Savr™ Daylight Sensor works with Maestro Wireless® switches and dimmers to save energy in small spaces by automatically dimming or switching electric light in response to available daylight. The sensor requires no new wiring and communicates via radio frequency, so installation only takes a few minutes. In a larger space, the Radio Powr Savr™ Daylight Sensor works with GRAFIK Eye® QS control units directly and the Energi Savr Node™ product family through the QS Sensor Module to save energy by automatically adjusting light levels based on the amount of daylight available within the space. The Radio Powr Savr™ Daylight Sensor can also be incorporated into Quantum® system through the QS Sensor Module to automatically adjust the light levels according to the amount daylight available in multiple spaces and provide total light management of an entire building.