95% 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 areaUT-300 Series sensors work with low voltage momentary switches for manual controlClip mounting system makes ceiling tile installation simpleUses plug terminal wiring system for quick and easy installation1 A at 30 VAC/VDC load ratingCeiling 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