Surface Marker Buoy Overview
A Surface Marker Buoy is an Inflatable Signalling Device used to mark the divers location either underwater or after surfacing. A DSMB - or Delayed Surface Marker Buoy is generally inflated underwater during a decompression or Safety Stop.
3 Basic Types of Delayed Surface Marker Bouy or DSMB:
Fully Closed (Sealed DSMB) Surface Marker Buoy
Sealed DSMB with Over Pressure Valve & Dump Toggle - can only be inflated via LP Inflator Valve or Oral Valve
|FC Marker sealed|
What about Colours:Orange Yellow Combo - is the most visible in all types of light conditions and is best suited for recreational divers
Orange - Generally used by Tec dives on Decompression Stops to signal all OK.
Yellow - Generally used by Tec dives on Decompression Stops to signal an Emergency
Pink - WOW! Actually studies have shown this a very visible colour for an SMB