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Angled image of Line Voltage PIR Fixture Integrated Occupancy Sensor, 18 ft coverage

Fixture Mount Sensor, PIR, Line Voltage, w/relay

FS-155 Wattstopper
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The FS-155/FS-155-1 Line Voltage Passive Infrared (PIR) 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. Both provide a sensor and relay in one package. Both the FS-155 and FS-155-1 are equipped with 6’ flying leads.
Footprint 12 ft
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Features

Features

  • Sensor and relay in one package
  • 6’ flying leads
  • Fresnel lens for reliable occupancy detection
  • Low profile for easy integration into lighting fixtures
  • 12-18 foot diameter coverage
Specifications

Specifications

General Info
Color White
Product Series FS-155
Type Sensor
Finish Glossy
Application Sector Commercial
Product Line Wattstopper
Country Of Origin China
Features Adjustable Time Delay, Flame Retardant, Indicator Lights
Installation Location Fixture
Warranty Type 5-Year
Standard UL, cUL, E101196, RoHS
UPC Number 754182920150
Dimensions
Product Depth US 0.972 in
Product Height US 1.607 in
Product Volume US 11.12 cu in
Product Width US 7.12 in
Product Weight US 1.928 oz
Additional Information
RoHS Compliant Yes This product meets the material restrictions of Article 4 of the RoHS Directive (2011/65/EU), including Commission Delegated Directive 2015/863.
Technical Information
On Function Auto On
Wire Connection Type Flying Leads
Has Battery No
Indoor/Outdoor Indoor
Input Voltage 120/277 VAC
Line Frequency 50 Hz, 60 Hz
Load Rating 1200 W @ 277 VAC, 800 W @ 120 VAC
Location Rating Dry
Mounting Type Fixture Embedded, Mounting Slots, Screw Holes
Timer Type Trimpot
Timer Duration 30 Seconds, 5-30 Minutes
Operating Temperature 0°-55°C, 32°-131°F
Operating Temperature Max 131 °F
Operating Temperature Min 32 °F
Operating Humidity 5-95% RH (Non-Condensing)
Sensor Type Occupancy
Sensor Technology Passive Infrared (PIR)
Sensor Mounting Height 8 ft
Storage Temperature -40° - 176° F, -40° - 80° C
Resources
Reviews

Reviews

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Questions & Answers

Questions & Answers

For the FS-155 sensor the dimension for the sensor location itself is missing can you provide a Center to sensor or end to sensor dimension that I can work with

Asked by: Sean
The following dimensions are provided in the OEM datasheet for the FS-155 series. The attached image was sourced from the same document: Sensor Body: 7.1" L × 0.87" D × 0.67" W (181mm × 22mm × 17mm) FS-155 Lens Housing: 0.5" (12.7mm) diameter FS-155-1 Lens Housing: 0.55" (14mm) diameter Lens Collar: 1" (25.4mm) diameter No additional center-to-sensor or end-to-sensor dimension is published. These are the only available measurements.
Answered by: Tier 1 Tech Support
Date published: 2025-08-04
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