The compact and sleek unit uses 2 x 2litre cylinders to provide you with up to 3 hours of dive time. When fully loaded with gas and scrubber material, the Submatix 100ST weighs only 15kg.

The fully mechanical Submatix requires very little set up time and has very few parts to fail. The unit is what is known as a Constant Mass Flow Semi Closed Rebreather. This means that it uses a carefully manufactured flow reducer to accurately deliver gas at a predetermined flow rate regardless of depth.

This simple device means that gas planning couldn’t be easier allowing you to plan your dive time with ultimate precision. Various flow reducers are available offering the user ultimate flexibility of depth and the gas used.

The gas used in the Submatix SCR is premixed Nitrox. The 2 x 2litre cylinders are filled with nitrox of a predetermined mix suitable for the dive. This gas is then delivered at just the right rate to enable you to dive for extended periods without the risk of receiving too much or too little oxygen.

This is achieved by taking the exhaled air from the diver and passing it through a canister filled with a granular carbon dioxide absorbent material that removes the carbon dioxide. This ‘cleansed’ air then has nitrox added before being inhaled by the diver.

Not only is this a very efficient use of gas but the carbon dioxide absorbtion process actually produces heat and moisture meaning that the gas you breathe is warm and moist – a far cry from the dry cold air that open circuit divers are used to.

This mechanical process does not rely on computers or manual intervention – simply set the unit up before you enter the water and then enjoy your diving. Basic monitoring of cylinder pressure and PPO2 throughout the dive is all that is required.