Welcome to
Vobster Marine Systems
Welcome to the home of the Sentinel Life Support System (LSS) - the world's most sophisticated and feature-packed exploration-grade closed circuit rebreather. Designed to meet the needs of even the most demanding dive explorers, the Sentinel is a fusion of intelligent design and cutting edge marine technology. Whether you're pushing the limits of dive exploration or simply diving for fun, the Sentinel will take you there. Even if you don't dive to the very limits... your rebreather should be built like you do.
Our Services...
Servicing
Regular servicing is important to ensure that your Sentinel continues to provide unrivalled performance.
Repairs
Stuff breaks - that's a simple fact of life. We're here to help you get your unit back up and running fast.
Upgrades
Keep your Sentinel rebreather ahead of the rest with a range of cutting-edge upgrades available direct from us.
Consumables
We offer a full range of consumables from oxygen cells to mushroom valves and more to keep your Sentinel diving.
Parts & Spares
From a complete head to a shiny new rear casing, we can supply the full range of Sentinel parts and spares.
Extended Warranty
Protect your Sentinel from manufacturing defects for a period of two years with our extended warranty package.
Introducing
the Sentinel CCR...
You might not dive ancient wrecks or explore deep virgin caves for a living... but your rebreather should be built like you do.

When we say that the Sentinel is 'engineered for exploration', we really do mean it - the Sentinel is built from the ground up to meet the needs and demands of some of the most challenging and inhospitable environments. You don't need to be a cutting-edge techie to benefit from the Sentinel's unique design - whether you're pushing the limits of dive exploration or simply diving for fun, the Sentinel will take you there.
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The choice of leading explorers...
The Sentinel rebreather is the choice of dive explorers across the globe. From the caves of France, Florida and Mexico to the deep wrecks of the Baltic and beyond, many of the world's leading explorers rely on the Sentinel to help them push the very limits of dive exploration. Find out for yourself what leading dive explorers say about the Sentinel rebreather...
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Looking after
you & your Sentinel
Vobster Marine Systems is dedicated to supporting what we believe to be the very best rebreather on the market - the Sentinel CCR.

Our dedicated team has years of experience working in the marine environment on a diverse range of cutting edge military and recreational products. Based in Somerset, Vobster Marine Systems offers a full range of support services to Sentinel divers across the globe. Our dedicated team has years of experience working in the marine environment on a diverse range of cutting edge military and recreational products.

From the supply of consumables and parts to full servicing, repairs and a range of exciting upgrades, we're here to help you and your Sentinel to realise your diving ambitions for many years to come...
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Engineered for
Exploration...