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EC-50R/ -100R

Reflective Beam Smoke Detector


The EC-50R/-100R comprises a transmitter and receiver in a single enclsure and is usually installed between 19 inches and 24 inches below the ceiling.  The transmitter emits an invisible infrared light beam that is reflected via a prism mounted directly opposite and with a clear line of sight.  The reflected infrared light is detected by the receiver and analyzed.  Smoke in the beam path will reduce the received infrared light proportionally to the density of the smoke.  The detector analyzes this attenuation or obscuration of light and acts accordingly.  Detectors are typically mounted within +/- 30 feet (9.14m) of a potential fire source.  Consult your Authority Having Jurisdiction for spacing requirements specific to your locality.

Standard Features

  • Coverage: 50R range 15 - 160 ft (4.6 - 48.8m); 100R range 160 - 330 ft (48.8 - 100m)

  • Microprocessor controlled

  • Automatic drift compensation

  • Simple alignment

  • Selectable alarm thresholds

  • 24 Vdc operating voltage

  • Latching or non-latching operation

  • Low current consumption

  • Optional Ground Level Test Station

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Catalog Numbers

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Catalog Number

Reflective auto align beam smoke detector




Agency Approvals

  • UL Listed

  • ULC Listed

  • MEA Approved

  • CSFM Listed


Power Supply:  10.2 Vdc to 30 Vdc (continuous power)
Current:  Standby - Less than 4 mA; Alarm/Trouble - Less than 14 mA
Contacts:  Alarm - Normally open, rated 2A, 30 Vdc, resistive; Trouble - Normally Closed rated 2A, 30Vdc, resistive
Signal Delay:  Alarm and trouble - 10 seconds
Reset Time:  > 5 seconds (power down)


Catalog Pages
Data Sheets
Installation Instructions