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Catalogue : Hardware : BCDs

Surface Observation Signal (SOS)

Designed to operate as an integrated part of your buoyancy compensator, the Surface Observation Signal (SOS) significantly increases your surface visibility in case of separation from your boat or your buddy. World-renowned underwater photographer Stephen Frink conceived and patented this device to assist during his working dives when his hands are full of expensive camera gear. Now you can have the same protection with this Aqua Lung/Sea Quest engineered exclusive product!
All wear areas are made of tough Armorshield? Cordura? with special dye processes to resist fading
Patented Quickdraw™ integrated weight release system. Holds up to 20 lbs (9 kgs) of weight. No need for a weight belt
Two, top-loading, rear non-ditch pockets allow for additional weight to trim the system
Sculpted shoulders using the exclusive Sea Quest swivel buckle system (patented) provide unsurpassed fit and comfort
Utilizes Sea Quest's time-proven contoured backpack for excellent tank stability
3 utility D rings offer plenty of mounting options for all your favorite accessories
Optional chest strap for those that prefer to wear the shoulder straps pulled closer together
Knife attachment grommets allow for quick attachment of a Deep See knife directly to the BC
Optional lower right side pull dump if you prefer head first descents or when you are in the swimming position

  • Attaches directly to the right rear buoyancy compensator relief valve opening
  • Easily inflates using standard buoyancy compensator pneumatics
  • Diver-controlled "rip cord" deploys the signal device without further handling
  • Fully inflated the device extends well-above the water surface for increased surface visibility of the diver
  • Easily rolls back into integrated holster for streamlined storage and simple reuse
  • The S.O.S. will fit Aqua Lung, SeaQuest and most Technisub BC's.