TDI Extended Range course teaches you the proper techniques for utilizing compressed air as a breathing gas so you don’t have to miss those dives! The TDI Extended Range Diver Course provides the training and experience necessary including proper techniques, equipment requirements, and hazards of deep air diving, to competently utilize air for dives up to 55 metres that require staged decompression, using nitrox mixtures or oxygen during decompression.
Speed up the course timing by completing learning components online with the SDI e-learning program