Heat Detector


Demco Heat Detectors D-103 employ the principle of electrother-modynamics, the science of relation between heat and electro-mechanical works. They are professionally designed to work reliably with most fire detection system with central control equipment.

These units feature a double stage fire detection by employing two distinct methods: Rate-of-Rise and Fixed Temperature, both of which are open circuits designs designed to close an electrical circuit upon activation. The Demco Heat Detectors meet the requirement of UL521.

  • Double sensitivity (rate of rise & fixed temperature)
  • Interchangeable base
  • Easy installation
  • Double terminal wire connector
  • LED indication
  • Low power consumption
  • Wide voltage variation
  • Auto reset (rate-of-rise mode)
  • Durable
  • Interchangeable base
Supply Voltage 12-28V DC
Standby Current Nil
Alarm Current 1.5mA
Size (Ø) x (H) 78 X 55 mm
Net Weight 92g

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