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.
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.