What is the Sentinel maximum dive time and depth?
Rebreathers carry many hours of breathing gas regardless of depth. The Sentinel can accept auxiliary outboard plug-in gas supplies as well, so dive time is no longer limited by gas volume. As with most rebreathers, the Sentinel diver is typically limited by the duration of the CO2 absorbent, so multi-hour runtime dives are routine. As with open-circuit nitrox diving, rebreather divers must also track their decompression and oxygen exposure; depending on the dive profile these may also limit the dive time. The Sentinel rebreathers are suitable for diving at all sport depths and have been tested to a depth exceeding 300 feet. There are some individuals who routinely dive the unit that deep and deeper. Although the rebreather can function at depths much deeper, there are numerous additional considerations. The Sentinel rebreather is an excellent choice for divers who wish to dive to extremes.
