What are the purpose, function and key features of submersible pressure gauges?
Submersible pressure gauge measures air pressure from a scuba cylinder
What is the purpose, function and key features of a dive computer?
It continuously monitors depth and time throughout the dive and compares that data to with a theoretical model intended to duplicate how the average body absorbs and releases nitrogen.
What is the purpose, function, and key features of a compass?
Allows divers to know what direction they are heading in.
What are the most common dive accessories?