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Wattstopper Ultrasonic Line Voltage Ceiling Occupancy Sensor 100-347 VAC, 2000 sq ft, UT-355-3

$159.14

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Wattstopper’s low-profile UT-355 Ultrasonic Line Voltage Ceiling Sensor automatically turns lighting on and off based on occupancy. The sensor mounts on the ceiling with a flat; unobtrusive appearance and provides 360° coverage.


  • Advanced control logic based on RISC micro-controller
  • Provides: Advanced Signal Processing to eliminate false triggers and provide immunity to RFI and EMI; Walk-through Mode to turn lights off three minutes after the area is initially occupied; ideal for brief visits such as mail delivery
  • Zero-crossing for long relay life
  • LED indicates occupancy detection
  • Coverage 500-2;000 square feet
  • DIP switch simplifies sensor adjustments
  • Patented ultrasonic diffusion technology spreads coverage to a wider area
  • Clip mounting system makes ceiling tile installation simple
  • Terminal wiring system provides quick and easy installation
  • Sensor coverage tested to NEMA Guide Publication WD 7-2000
  • 120/230 (single phase)/277/347 VAC; 50/60 Hz
Brand Wattstopper
Color White
Product Series UT-355
Features Adjustable Time Delay; Indicator Lights; Light Level Sensor; Sensitivity Adjustment
Installation Location Ceiling
Application Sector Commercial
Standard UL; cUL; PEP
Type Sensor

Product dimensions

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