The Radio Powr Savr Wireless Daylight Sensor from Lutron Electronics Co. is a battery-powered, ceiling-mount sensor that decreases or turns off electric lighting when sufficient daylight is available. Once it detects daylight, the sensor transmits information via Clear Connect RF communications to compatible dimming and switching devices, which adjust light levels accordingly. Sensors are placed on the ceiling and a standard light switch is replaced with a compatible Lutron dimmer or switch. No wiring is required, and several mounting options are available to accommodate a variety of ceiling materials. The sensors are compatible with several Lutron dimmers, switches, control units, and systems.