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Dual Tech Occupancy Sensor 100 -347 VAC, center mount 360 USA

DT-355-U Wattstopper
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Wattstopper’s low profile DT-355 dual technology occupancy sensor combines the benefits of passive infrared (PIR) and ultrasonic technologies. The sensor mounts on the ceiling with a flat, unobtrusive appearance and provides 360 degrees of coverage.
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  • Architecturally appealing low profile appearance
  • Ultrasonic diffusers give more comprehensive coverage
  • Operates at 120, 230 (single phase), 277 or 347 VAC, 50/60 Hz
  • Terminal wiring for quick and easy installation
  • Walk-through mode increases savings potential


General Info
Product Line Wattstopper
UPC Number 754182925858
Country Of Origin United States
Features Indicator Lights, IR (Infrared), Motion Sensor
Application Sector Commercial
Warranty Type 5-Year
Product Length US 4.5 in
Additional Information
Product Environmental Profile Yes
Technical Information
Sensor Type Occupancy
Indicator LED Light
Wattage 800 W
Sensing Range 360 degrees,1000 sq ft
Voltage 100 to 347 V
Connection Type Wired


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Questions & Answers

I need sensors for two stairwells in a commercial building. I would like to put a sensor at both ends of the stairs. I have 120v line voltage and have LW wire run in parallel to the switch location from the sensor location. What sensor is best?

Asked by: Kevin Dettmering
For Low Voltage installation, I'd recommend the DT-305 sensors, LVSW-101 switch, and BZ-150 power pack. This would require low voltage wiring from the sensor locations and switch location to the power pack. If you wanted a line voltage solution, take a look at the DT-355 sensors, but keep in mind that they won't interface with a low voltage switch.
Answered by: Tier 1 Tech Support
Date published: 2024-01-30

can these occupancy sensors be utilized in a cleanroom setting? specifically ISO 5-9 rated cleanrooms

Asked by: bdecker
No, our sensors are not cleanroom certified.
Answered by: Tier 1 Tech Support
Date published: 2022-06-01
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