Rotating light sensor optimal for best performance in locating light measurements (up, down and side lighting)Auto-calibration set to auto calibration, light sensor measures lowest light level of facility with all lights ON for 24 hr to determine the daylighting set pointManual calibration optimize energy savings and operation by manually configuring the daylighting set pointPerformance daylighting enhanced design algorithms to assure lights will not cycle during cloud cover or varying light levelsFast and simple setting the OSFHP does not require power to set the time delay saving valuable time during installation load 1 =30 sec to 30 min, load 2 =30 sec infinity (starts after load 1 expires)Fast and simple testing OSFHD will "instant ON" within 5 sec, upon initial power, relay is closed enabling labor savings testing in secPower interruption state for energy savings and safety, if power is lost to device, device will return to last known stateFast, simple installation the OSFHP sensor easily installs on individual fixtures using standard 1/2 in knockouts and the quicksnap feature which eliminates the time to tighten the locknutThe 42 in wire leads reduce time and materials for connecting the ballastSimply make the electrical connections inside the ballast compartment, install the appropriate adjustable lens assembly included and the sensor is readyZero crossing circuitry relay uses a zero crossing circuitry to provide reliable, long life operationRange and coverage the 360 deg high bay PIR lens provides a 21 spacing to mounting height coverage under 25 ft mounting and a 1.51 for heights up to 40 ft mountingThe 360 deg low bay lens provides 21 spacing to mounting height coverage for 8 to 20 ft mountingLED super bright green LED indicates occupancy detection and can be seen at 40 ftFalse detection protection energy saving technology is designed into the OSFHD to assure your lights are ON only when needed