...Rebreather controller

Safety...

When selecting components to be incorporated into the "Deep Pursuit" we wouldn't settle for 'off the shelf' components from the cheapest supplier, we insisted on the right components for the job regardless of cost. Our solenoid is designed for use with pure oxygen in a pure oxygen environment. The only one of its kind that we are aware of that is certified for this purpose and supported by the manufacturer specifically for use in a technical rebreather. The failure mode of this valve is in the closed position, reducing the risk of an oxygen toxicity hit at depth. User serviceable without tools using inexpensive parts.
Every conductive part used in the head enclosures have been plated in 24k gold. All cables and connectors are gold plated and user replaceable. This reduces any possibility of a premature failure from oxidization, a common fault in other units and an ongoing cost in respect to a yearly service. All electronic components are protected from corrosion

Selecting components that exceed the performance of any other is not enough, we need to be doubly or triple sure that you have the necessary tools to be safe regardless of the circumstances that you encounter. That is why you get double redundant PO2 monitoring with true independence as standard, apart from the oxygen cells, no independent system shares resources with any other.
The "Option 4 Deep Pursuit" benefits from triple redundancy as the two handsets and the HUD are truly independent. The primary handset runs setpoint control and gives 'real time' decompression, the HUD gives real time PO2 and the second handset mirrors the primary in all aspects except solenoid control.

The saying goes that we are more that the sum of our parts, and this can also be said for the "Deep Pursuit". All critical systems are encased in their own hermetic compartments. Accidental and catastrophic ingress of seawater cannot migrate from one compartment to another. Independance should be a philosophy, true and defined and not limited to just wiring or logic. The same philosophy has been applie to the most critical of  any ECCR, the Power supplies;
All systems (Controller, HUD and solenoid) have their own independent power supplies. No loss of any single power supply will lead to the diver not knowing his PO2. and just to make sure that we have all the bases covered, and to give you a choice, every Pursuit system is fitted with a fourth cell holder as standard.