High-visibility safety with minimal bulk — a streamlined surface marker designed for reliable deployment in any diving environment.

The Halcyon Super Slim Diver’s Alert Marker 6’6″ (1.8m) delivers outstanding visibility and dependable performance in a compact, low-profile design. Built for divers who want maximum surface signalling capability without unnecessary bulk, this super slim SMB (Surface Marker Buoy) is ideal for both recreational and technical diving applications.

With its tall 1.8m height and narrow 15cm profile, the Super Slim DAM provides excellent visibility at the surface while remaining easy to stow and deploy — making it an essential piece of safety equipment for every dive.

Features:

• Super slim profile — only 15cm wide for reduced bulk and easy storage
• Full 1.8m (6 ft) height — ensures maximum surface visibility in open water
• Closed-circuit design — one-way valve retains gas for consistent buoyancy and visibility
• Approx. 5.5kg / 12lb lift capacity — provides reliable flotation and signalling support
• Integrated over-pressure valve (OPV) — allows safe deployment from depth without over-expansion
• Halcyon No-Lock® connector — enables quick and secure inflation via LP hose or orally
• Durable 200D nylon construction — abrasion-resistant and built for long-term use
• Compact storage — packs small enough to fit in a thigh pocket or storage pouch
• Multi-colour options — supports signalling protocols (e.g. standard vs emergency markers)

Slim, reliable, and built for real-world diving — the Halcyon Super Slim Diver’s Alert Marker is a must-have safety tool, delivering maximum visibility and performance in a compact, diver-friendly design.

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