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Notifier FDX-551R4 Heat Detector
Verified: May 26, 2026

Notifier FDX-551R4 Heat Detector

~$39.00

The Notifier FDX-551R4 is a heat detector designed to sense abnormally high temperatures and activate the fire alarm system.

Key Specifications

  • Compatibility: Notifier fire alarm control panels
  • Temperature Range: 135°F (57°C) fixed temperature
  • Response Time: Less than 30 seconds
  • Operating Voltage: 12-24 VDC
  • Mounting: Standard electrical box
  • Type: Rate-of-Rise and Fixed Temperature Heat Detector
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