Diver’s Alert Markers use an integrated over pressure-relief valve, allowing them to be deployed from depth
Oral inflate marker does not use a pressure-relief valve; it is only suitable for surface deployment
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 that wish to carry one color to mark position and one to mark emergencies.