Features95% relative humidity, non-condensing, for indoor use only environmental conditionsWattStopper® UT-300 ultrasonic ceiling sensors automatically turn lighting on and off based on occupancyThe sensor mounts on the ceiling with a flat, low profile appearance and provides 360 deg of coverageAdvanced signal processing eliminates false triggers and provides immunity to RFI and EMIWalk through mode turns lights off 3 min after the area is initially occupied - ideal for brief visits such as mail deliveryDip switch simplifies sensor adjustmentsPatented ultrasonic diffusion technology spreads coverage to a wider areaTerminal wiring system provides quick and easy installationClip mounting system makes ceiling tile installation simple0 to 800 W ballast/tungsten/LED, 0 to 1200 W ballast led, 0 to 1500 W ballast led load ratingBallast load type0 to 800 W at 120 VAC, 0 to 1200 W at 230 VAC, 0 to 1500 W at 277 VACCeiling sensors automatically turn lighting on and off based on occupancyThe sensors mount on the ceiling with a flat, unobtrusive appearance95% relative humidity, non-condensing, for indoor use only