The occupancy sensor is capable of detecting motion up to 49 feet (15 meters) away by using Radio Frequency (RF) technology. Unlike traditional PIR sensors, RF sensors work in high temperature environments as well as in fully-enclosed fixtures. The sensor is compatible operating only from direct AC line voltage. The sensor controls the light output to three levels: maximum, dimmed and off. It can program two periods of selectable waiting options: hold-time and stand-by period. Using the daylight sensor to detect ambient light, the fixture can turn itself off regardless of occupancy status. These levels, as well as motion sensitivity and hold times, are user programmable by the IR remote control. The IR remote has been custom designed for operation in high-bay applications and will control the sensor at least 66 feet (20 meters) away.