The options to manual add oxygen in the event of electronic malfunction is fitted to the side of the SF2 Sidemount rig.Any good quality regulator first stage can be used to feed the rebreather oxygen or diluent.
For advanced technical level dives divers may opt to plug in off-board gases, for this we have QC fittings making easy to plug and unplug additional cylinders as required. The rebreathers delrin machined mid section houses the Apeks Second stage as an automatic diluent valve and the orifice that allows manual addition of gas. As either gas are added to the centre section making it very efficient for flushing gas around the loop.
The Head (Electronic) is powered by Shearwater and comes standard with the primary controller running three O2 sensors in the head. A lot of thought has gone into the design of the head to ensure the sensors stay free of moisture and the unit is simple to operate and service. The Shearwater controller is run from a single 9V battery, the Jaksa Solenoid will operate for long durations.