Conventional – Orbis Optical

Product Overview

The Orbis Marine Optical Smoke Detector works on the well established light scatter principle. However, the sensing technology is radically different in design from previous optical detectors and significantly reduces false alarms.


  • Responds well to slow-burning, smouldering fires.
  • Performs well in black and white smoke.
  • Extra confirmation of smoke before alarm signal is given.
  • Reduced incidents of false alarms.
  • Sensing chamber keeps out dust and other airborne contaminants.
  • Operates over a broad range of voltages at extremes of temperature.


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 46mm H
Operating temperature -40°C to +70°C (no icing)
Relative humidity 0 to 98% (non condensing)
IP rating IP23D (indoor use)
Weight 75 grams (135g inc base)

Item Numbers

201-0654 Orbis Marine Optical Smoke Detector (AS)
ORB-OP-42001-MAR Orbis Marine Optical Smoke Detector
ORB-OP-42003-MAR Orbis Marine Optical Smoke Detector with Flashing LED