WattStopper CI-355 Motion Sensor, Passive Infrared Ceiling Occupancy Sensor, 120V - 347V - White

SKU: 320924
Brand: WattStopper Model: CI-355 Condition: New

WattStopper CI-355 Occupancy Sensors

  • WattStopper CI-355 Occupancy Sensors
  • WattStopper CI-355
Regular Price: $147.99
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The WattStopper CI-355 passive infrared (PIR) occupancy sensor automatically turns lighting on and off based on occupancy. The sensor mounts on theceiling with a flat, low-profile appearance and provides 360 degrees of coverage. The CI-355 is line voltage and operates at 120, 230, 277 or 347 VAC. The sensor uses passive infrared technology (PIR) to sense occupancy and automatically turn lighting on. PIR works by sensing the difference between infrared energy from a human body in motion and the background space. When no occupancy is detected for the length of the time delay, lighting automatically turns off. The CI-355 works well in open office spaces, computer rooms, conference rooms, classrooms, and warehouses. It is a good choice for areas with high ceilings or with two-level lighting and can be mounted though tile ceiling or through an Octagonal J-Box. The convenient mounting system keeps installation costs down. It also eliminates the need for a power pack by using line voltage wiring.


  • Detection Signature Processing eliminates false triggers and provides immunity to RFI and EMI
  • Walk-through mode turns lights off 3 minutes after the area is initially occupied - ideal for brief visits such as mail delivery
  • Built-in light level sensor featuring simple, one-step set-up LED indicates occupancy detection
  • DIP switch simplifies sensor adjustments
  • Clip mounting system makes ceiling tile installation simple
  • Uses existing line voltage wiring and doesn't require a power pack
  • Qualifies for ARRA-funded public works projects


  • 120/230/277/347 VAC, 50/60 Hz
  • Time delays: Auto set, fixed (5, 10, 15, 20, or 30 minutes), walk-through, test-mode
  • Sensitivity adjustment: Auto set or reduced sensitivity
  • Multi-level, 360° Fresnel lens for superior occupancy detection
  • Built-in light level sensor - works from 10 to 300 footcandles (107.6 to 3,229.2 lux)
  • Mounting options: 4 square junction box with double gang mudring; 4 inch octagonal j-box
  • Dimensions: 4.5" diameter x 1.45" deep (114.3mm x 25.9mm)
  • UL and cUL listed
  • Five year warranty

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