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High/Low PIR Fixture Sensor Universal Voltage, 120-480VAC

FSP-221B Wattstopper
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The FSP-2x1B sensors provide multi-level control based on motion and/or daylight contribution. They control 0-10 VDC LED drivers or dimming ballasts, as well as non-dimming ballasts and, with an FSP-Lx Lens, are rated for wet and cold locations. All control parameters are adjustable via a wireless configuration tool capable of storing and transmitting sensor profiles. The FSP-2x1B family is available in three configurations for mounting inside a fixture, to the outside of a fixture via a 1/2” knockout, or to a pole.
Color None
Footprint None
Voltage 347 VAC
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  • Designed for LED fixtures and rated for extreme temperatures; options for box or pole mounting
  • Fully adjustable high and low dimmed light levels
  • Hold off setpoint with automatic calibration option for convenience and added energy savings
  • Adjustable via handheld wireless configuration tool
  • IP66 rated with choice of lenses for wet and outdoor locations, and mounting heights from 8’ to 40’
  • Adjustable time delay and cutoff delay


General Info
Product Line Wattstopper
Color White
UPC Number 754182939497
Country Of Origin China
Product Width US 6.0 in
Product Weight US 0.45 lb
Product Volume US 90.0 cu in
Product Depth US 6.0 in
Product Height US 2.5 in
Additional Information
Product Environmental Profile Yes
Technical Information
Sensor Type Occupancy, Daylight


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Questions & Answers

About your mounting height recommendation of 40' max., is your device still functional when mounted at 50'? What is the impact on the operation?

Asked by: Besner
The sensor can be mounted at 50 ft but recommended and tested mounted at 40ft. The footprint of the sensing field will increase in size and be less effective. It should still be able to trigger the lights but also should be tested on location for actual coverage and proper operation.
Answered by: Tier 1 Tech Support
Date published: 2023-03-01
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