If you are not already Tec
Deep Diver Level 1, your instructor will want you to go on a couple of
dives. This will allow them to asses your general dive skills and
work on areas that need brushing up.
After
successful completion of the DSAT Tec Deep Diver course you'll be able to
conduct gas-switch extended no-decompression dives, decompression dives
and accelerated decompression dives using air and enriched air to a depth
of 50 metres/165 feet. You'll also understand the hazards and risks
involved in technical diving, as well as how to prepare for and handle
reasonable foreseeable technical diving emergencies.