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Apollo Discovery Marine Optical Smoke Detector

£69.55 (inc VAT: £83.46)

Low Stock

SKU: 58000-600MAR Category: Brand:


The Discovery Marine Optical Smoke Detector works using the light scatter principle and is ideal for applications where slow-burning or smouldering fires are likely.

Operating Principles:

The Discovery Marine Optical Smoke Detector has a white moulded polycarbonate case with wind-resistant smoke inlets.

The indicator LEDs are colourless when the detector is in quiescent state and red in alarm. Within the case is a printed circuit board which, on one side, has the light-proof chamber with integral gauze surrounding the optical measuring system and, on the other, the signal processing and communications electronics.

An infra-red light-emitting diode within its collimator is arranged at an obtuse angle to the photo-diode. The photo-diode has an integral daylight-blocking filter.

Maintenance & Service

Detectors should be maintained according to BS 5839-1 or other locally applicable code. Test equipment can be ordered from Apollo for testing smoke and heat detectors. Detectors should not be cleaned in the field except for careful removal of exterior dirt with a damp cloth. For cleaning and recalibration detectors should be returned to Apollo Fire Detectors or to the local distributor.


  • Responds well to slow-burning, smouldering fires
  • Suitable for bedrooms and escape routes
  • Unaffected by wind or atmospheric pressure
  • Remote test feature
  • Rejection of transient signals


  • Operating voltage: 17-28V DC
  • Quiescent : 300µA
  • Power-up surge current: 1mA
  • Maximum power-up time: 10 seconds
  • Alarm indicator: Two clear 360º viewable light emitting diode (LED) illuminating red in alarm. Optional remote LED
  • Alarm current, LED illuminated: 3.5 mA
  • Remote output characteristics: Connects to positive line through 4.5 kΩ (5 mA maximum)
  • Clean-air analogue value: 23 +4/-0
  • Alarm level analogue value: 55
  • Operating temperature: -40°C to +70°C
  • Humidity: 0% to 95% RH (no condensation or icing)
  • IP Rating: IP44
  • Standards & approvals: EN 54-7, CPR, LPCB, MED, LR, DNV-GL, BV, ABS, CCS, KRS and VNIIPO
  • Dimensions: 100 mm diameter x 42 mm height (50 mm height with XPERT 7 base)
  • Weight: 105 g
  • Materials: Housing – White flame-retardant polycarbonate Terminals – Nickel plated stainless steel


Additional information

Weight 1 kg

Detection Type

Hazardous Applications

Marine Applications


System Type