LUTRON LRF2-DCRB-WH 434MHz 3V Wireless Daylight Sensor, White

Lutron’s wireless daylight sensor is a batterypowered sensor that automatically controls lights via RF communication to compatible dimming or switching devices. This sensor mounts to the ceiling and measures light in the space. The sensor then wirelessly transmits the light level to the associated dimming or switching devices that automatically control the lights to balance light level in the space. The sensor combines both convenience and exceptional energy savings along with ease of installation.