Fireray 50RU


Reflective beam smoke detector 16.5ft-160ft. (50m) (0206-02)

Available with Lead Time

  • Factory New
Brand: Fireray Part #: 003906 Category: Manufacturer Part #: 50RUSecondary Part #: 85311030, 0206-02 Tag:


The system comprises of a single unit incorporating an infra-red transmitter and receiver. The signal generated in the transmitter element and reflected by the prism back to the receiver element is analyzed for the presence of smoke. The internal microprocessor determines an alarm condition when a predetermined level is reached.

The system is designed to be mounted so the beam will project between 19” (0.5m) and 24” (0.6m) below and parallel to the ceiling. Lateral detection may be up to 30ft. (9.144m) on either side of the beam, providing a maximum total coverage area of up to 19,800 square feet (60ft. x 330ft. or 18.29m x 100m).


Weight 1.50 lbs
Dimensions 4.50 × 4.75 × 8.25 in




  • 2 Models for ranges of:
    • 16.5 ft. to 160 ft. (5m to 50m)
    • 160 ft. to 330 ft. (50m to 100m)
  • Easy set up and alignment
  • Single compact housing
  • Calibrated obscuration test filter included
  • 3 selectable alarm thresholds: 25%, 35% or 50%
  • Microprocessor controlled
  • Alarm latching or auto reset
  • Automatic gain control
  • 12 VDC or 24 VDC operation
  • Separate alarm and trouble contacts
  • Remote Test Station available
  • 3 Year Warranty.


Fireray 50/100RU; Reflective Optical Beam Smoke Detector
Fireray – Data Sheet
Reflective Optical Beam Smoke Detector
Fireray – User Guide


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