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Wattstopper Low Voltage Ultrasonic Fixture Occupancy Sensor for Stairway Applications; 120/277 VAC Fixture Mount, FS-505

$122.00

$89.28

Product dimensions

  • Width:

    5.2 IN

  • Height:

    1.25 IN

  • Depth:

    0.62

  • Weight:

    0 LBS

The FS-505 and FS-505C Low Voltage Ultrasonic Fixture Sensors control lighting based on occupancy. They are designed with a low-profile; architecturally pleasing appearance to easily integrate into a wide range of lighting fixtures or a customized housing. The sensors’ modular plug-in system utilizes an RJ45 connector and 3’ cord for flexibility and ease of use.


  • Ultrasonic technology (40Khz)
  • 24 VDC
  • Compact design for installation in low-profile fixtures
  • Three modes: override; burn-in and test modes
  • Voltage: 24VDC
  • Current Consumption: 43mA
  • Power Supply: FS-PPv2 Fixture Power Pack
  • Coverage at 8 ft. height – FS-555: 24’ (731.5cm) diameter – FS-555C: 30’ x 24’ (457.2 x 365.7cm)
  • Time Delay: 5–30 minutes
  • Operating Temperature: 32–131°F (0–55°C)
Brand Wattstopper
Manufacturer Part Number FS-505

Product dimensions

  • Width:

    5.2 IN

  • Height:

    1.25 IN

  • Depth:

    0.62

  • Weight:

    0 LBS

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