Halcyon SMB Yellow 3.3′ (1m) Long CC

Description

The Halcyon 3.3′ (1m) Closed Circuit Yellow SMB (Diver Alert Marker) is a compact, highly visible safety device for scuba divers. It features a closed-circuit design to prevent accidental deflation at the surface, an integrated over-pressure valve (OPV) for deployment from depth, and a No-Lock® connector for easy oral or LP hose inflation.

Key Features and Benefits

• High Visibility Yellow: Ideal for high contrast in darker or green water and commonly used to signal emergencies.
• Closed-Circuit Design: Unlike open-bottom bags, this retains gas, keeping the marker rigid and upright even if it tips over.
• Deployment from Depth: Integrated Over-Pressure Valve (OPV) vents expanding gas during ascent, preventing bursting.
• Versatile Inflation: Features a patented No-Lock® connector that works with LP hoses or for easy oral inflation.
• Compact & Durable: Made of 200-denier nylon with RF-welded seams; packs small enough to fit in a pocket or storage pak.
• Dimensions: 3.3 ft (1m) length, offering approximately 3kg/6lb of lift.

This yellow marker is often used by divers to differentiate themselves from the standard orange “OK/Position” marker, serving as an emergency or distinct position signal.