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Edwards Signaling Vibrating Fire Alarm Bell

Edwards Signaling Vibrating Fire Alarm Bell
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Edwards Signaling Vibrating Fire Alarm Bell


Edwards 439D fire alarm bells are diode polarized, vibrating bells for use with fire alarm equipment. They operate in conjunction with an installed fire alarm panel and detection devices. The steel alloy gongs are red epoxy powder finish and produce a loud, resonant tone required in fire alarm systems.

Also known as

  • Commercial Fire Systems: Edwards Signaling Safety Supplies Vibrating Fire Alarm


  • 6 in. red gong
  • Heavy duty die cast housing
  • Steel alloy gong
  • Back box (449) available for use in outdoor applications
  • Under dome mechanism
  • dB at 1m/10 ft. : 95/85 (anechoic chamber)
  • 24 VDC operating voltage
  • Ul, fm, csfm


Product Height (in.)  3.34
Product Depth (in.)  6
Product Width (in.)  6

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