3.3’ Closed-Circuit DAM (1 m/3.3 ft Tall and 2.7 kg/6 lb Lift)

Halcyon’s 1 m/3.3 ft Closed Circuit Diver Alert Marker is a compact and essential safety tool that ensures you're seen at the surface, even from a distance.

With a closed-circuit design that prevents gas escape, this marker helps divers maintain a clear and lasting presence above water when signaling or separated from their team.

Compact and Reliable Surface Marker

Ideal for both recreational and technical diving, this DAM includes an over-pressure valve for safe inflation, welded seams for durability, and options for oral or low-pressure hose inflation. It’s small enough to pack easily, yet big enough to make a difference when it matters most.

Specifications

• Easily inflated at depth
• Diver’s Alert Markers use an integrated over-pressure relief valve, allowing them to be deployed from depth
• When deflated, all markers fit in a Halcyon thigh pocket or backplate MC Storage Pak
• Big and Super Big Alert Markers are marked with Coast Guard-approved SOLAS reflective tape
• Halcyon Diver Alert Markers (except semi-closed model) feature our No-Lock® connector for oral inflate or LP hose connection
• Halcyon offers several Diver Alert Markers in your choice of yellow, shocking pink, or orange. These combinations support divers who wish to carry one color to mark their position and one to mark emergencies.