2 Wire Heat Detector with Remote LED Output – # HD912-2L

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2 Wire Heat Detector with Remote LED Output 
– # HD912-2L

All of the Sentek’s HD912 series detectors meet the requirements of UL521 and EN 54-5 for use in Þ re alarm signaling systems, which provide fast and reliable response for heat 57°C (135°F) or Rate-of-Rise detection, They are intended for use in 2-wire/4-wire Class A2 supervised zone circuits. The HD912 series detectors are subject to panel compatibility limits and compliance with corresponding NFPA 72E standards, local codes, and ordinances.


  •  2 or 4 wire models
  • Advanced detection and discrimination algorithms
  • Easy installation and maintenance
  • Sleek low-profile housing design
  • Durable sensor head, no need for replacement
  • SMD circuit board design-satisfactory quality and reliability guaranteed
  • N/C (normal/close)-N/O (normal/open) selectable relay output
  • AR (Auto Reset) function for security systems (optional for 4 wire models) Sensor base option: standard and Shottky Diode
  • Five-year limited warranty
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