Jeff Loudan
Registered
I would like to suggest the EMC-20H or EMC-16 from Cochran Undersea Technology as a great 'first computer'. I am also a DM and I've used my EMC-20H with classes and checkout dives with no problems at all (500+ dives). It will NEVER lock you out due to ascent rate violations or 'breaking' a decompression ceiling. It also has one of the most liberal algorithms in the industry. Good luck with your search and have a great career as a DM !!