UPGRADE: CCR BOTTOM TIMER TO CLOSED CIRCUIT (WITHOUT CABLE)
By this upgrade you can create the highest version of Freedom without any limitations. You can use up to nine arbitrary mixtures under open, semi-closed and closed circuits. You can also connect up to 3 oxygen sensors for on-line decompression diving with your rebreather. Connecting cable for oxygen sensors is not included in the price of the upgrade.
De upgrade zal pas aangevraagd kunnen worden nadat wij het serienummer ontvangen hebben.