• 4-Wire Photoelectric Smoke Detector

The Tyco DSC FSA-410BRT is a 4-wire photoelectric smoke detector with an auxiliary relay and heat detector that incorporates a low-profile design and features that help reduce false alarms and provide consistent smoke detection. 

The FSA-410BRT offers integral dual-sensor heat detection, automatic drift compensation and an easy-maintenance removable chamber. The unit is listed for commercial and residential applications, and is compatible with all DSC control panels. Precise and quick sensitivity testing is easily accomplished with the new FSD-100 handheld test meter.


  • Automatic drift compensation
  • Built-in, dual-sensor heat detector
  • Easy-maintenance removable smoke chamber
  • Interconnectable using PRM-2W/4W polarity reversal modules
  • Non-contact sensitivity reading with handheld test meter (FSD-100)
  • Low profile design
  • Local test button

Technical Specifications:

  • Diameter: 5.8" (147 mm)
  • Height: 2.077" (52.8 mm)
  • Color: White
  • Mounting: Surface mount with screws
  • Bracket: Twist on/off either locking or non-locking
  • Nominal: 3.0% +/- 0.8% obscuration/ft. (UL); 2.0% +/- 0.5% obscuration/ft. (ULC & EN)
  • Alarm: Fixed-temperature 135 degrees F (57.2 degrees C)
  • Operating Environment: 32 degrees to 120 degrees F, (0 degrees to 49 degrees C)
  • Relative Humidity: 5% to 93% 
  • RF Immunity: 20 V/m 0-1000 MHz

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4-Wire Photoelectric Smoke Detector

  • Product Code: FSA-410BRT

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Tags: hardwired smoke detectors, fire, security