FireWatcher 521 Intelligent Heat Detector

The FW521 is an intelligent Heat Detector UL listed device according to UL 521 and ULC-S530 for Fire Protective Signaling Systems for indoor use with both fixed-temperature alarm and rate-of-rise alarm characteristics. It features a slim design which combines visual appeal with a high standard of reliability. The detector has a Microcontroller Unit (MCU) performing comprehensive self-diagnostic tests, and result analysis. The FW521 is intelligent, addressable, and takes one address on the Signaling Line Circuit (SLC) of the fire alarm control panel.

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  • UL521/ULC S530
  • Addressable
  • Fixed Temperature and rate-of-rise
  • Comprehensive self diagnostics
  • Slim design – visually appealing

Intelligent addressable heat detectors are vital for life safety, as often the heat from a fire can be detected before smoke buildup happens. This can give the few extra minutes needed to evacuate and save lives. The FW521 offers both fixed temperature and rate-of-rise detection in a single unit.

FireWatcher UL Listed FireWatcher ULC Listed