Halcyon Diver's Alert Markers

Halcyon's series of Diver Alert Markers provide maximum visibility and redundant flotation at the surface

Open water divers should always carry a marker buoy they can send up in the event of separation from buddy, primary group, or boat

Available in four sizes:

Small Alert Marker: 3.3' long, 6 lbs lift

Semi-Closed Alert Marker: 3.8’ long, 20 lbs lift

Big Alert Marker: 4.5' long, 40 lbs lift

Super Big Alert Marker: 6' long, 52 lbs lift

•Halcyon Diver Alert Markers (except semi-closed model) feature closed-circuit (one-way valve) construction

•Inflate at the surface to attract attention

•Inflate at depth to send up as a surface marker

•All markers are small enough when deflated to fit in a Halcyon thigh pocket or MC Storage Pak

•Big and Super Big Alert Markers both come with Coast Guard approved SOLAS reflective tape across the top for improved visibility.

•The Semi-Closed Alert Marker has a baffled open bottom for filling with a regulator’s second stage; all other Halcyon Divers Alert Markers feature closed-circuit (one-way valve) construction.

Our European customers have been requesting a safety-yellow variation of our Diver Alert Markers– it is common to expect or require both yellow and orange markers when diving off of a charter in some countries. In response, Halcyon is now making the small closed-circuit DAM in florescent yellow.

In addition to the yellow 3.3' dam, Halcyon is introducing a completely open circuit alert marker that will sell in a two-pack with one yellow and one orange marker.

The new markers are 4.5' (1.37m) long, are an open-bottom design (not baffled, like the semi-closed DAM).