DSMB’s, or Delayed Surface Marker Buoys

DSMB’s, or Delayed Surface Marker Buoys, are a diver’s best friend. Used for communication with surface crews or boats while the diver is still at depth.

They can be used to signal the need for a boat pick up, as a distress signal, a marker of a location (maybe of that sunken treasure you found?), or to indicate the need for additional air on long decompression stops.

dsmb

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