Halycon Diver's Alert Marker (Semi-closed Circuit)

Halcyon's Diver Alert Markers series provide maximum visibility and redundant flotation at the surface The Halcyon Diver's Alert Maker should be carried by Open water divers and can be used as a marker buoy they can send up in the event of separation.

Not only can the Halcyon Diver Alert Marker be inflated at the surface to attract attention, it can be inflated at depth to send up as a surface marker. All Halcyon Diver Alert Markers are small enough when defalted to fit into Halcyon thigh pocket or MC Storage Pak. The Halycon 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.

the semi-closed halcyon diver alert markers'size: 3.8’ long, 20 lbs lift