Oceanic Max-Depth Three Gauge Navcon SWIV ConsoleModular flexibility. The MaxDepth gauge is still one of the most dependable instruments around for divers who are just starting out or don't feel they need the advanced features of a Personal Dive Computer just yet. But don't worry, Oceanic's modular gauge design allows you to easily swap out the depth gauge module with a PDC as your needs change and your experience grows.