ORB-OP-42001-MAR, also known as the Orbis Marine Optical Smoke Detector from Apollo Fire Detectors:

 Detection Technology

• Principle: Photo-electric light scattering
• Sensor Design: Surface-mount infrared emitter + prism, with solid-state photo-diode and amplifier
• Fire Response: Optimized for fast-burning, flaming fires
• False Alarm Reduction: Advanced sensing chamber design keeps out dust and airborne contaminants

 Electrical Specs

• Operating Voltage: 5V to 33V DC
• Alarm Reset Time: 1 second
• Sampling Frequency: Every 4 seconds
• Polarity: L1 & L2 are polarity sensitive

 Environmental Ratings

• Temperature Range: -40°C to +70°C
• Humidity: 0% to 98% RH (non-condensing)
• IP Rating: IP23D

 Physical Details

• Diameter: 97mm
• Height: 31mm
• Weight: 75g
• Material: Polycarbonate housing

 Certifications

• Marine Approvals: BV, LR, DNV.GL, CCS, ABS, MED
• Compliance: Designed for marine environments and escape routes