Conventional Orbis Marine Heat Detector

Product Overview

The Orbis Marine Heat Detector uses a single thermistor to sense the air temperature around the detector. There are six classes of heat detectors in the Orbis Marine range designed to suit a wide variety of operating conditions.


  • Can be used for applications where smoke detectors are unsuitable.
  • Ideal in environments that are dirty or smokey under normal conditions.
  • Reduced incidences of false alarms.
  • Increased reliability of detection.


Approvals: Lloyd’s Registry, American Bureau Shipping, Korean Register & China Classification Society.


Operating voltage 8.5 to 33 VDC
Quiescent current 65µA at 24 VDC
Alarm current 40mA at 24 VDC
Remote output 1.2kΩ to -ve supply
Size inc base 100mm D x 51mm H
Operating temperature -40°C to +70°C (no icing)
Relative humidity 0 to 98% (non condensing)
IP rating IP23D (indoor use)
Weight 70 grams (130g inc base)


Item Numbers


Orbis Marine A1R (50°C) Heat Detector Rate of Rise


Orbis Marine A2S (50°C) Heat Detector Static


Orbis Marine BR (65°C) Heat Detector Rate of Rise


Orbis Marine BS (65°C) Heat Detector Static


Orbis Marine CR (80°C) Heat Detector Rate of Rise

ORB -HT-41006-MAR

Orbis Marine CS (80°C) Heat Detector Static