SPG of choice?

[Cave Diver]

Ok Mat, you owe me a keyboard for that one.

 

[PfcAJ]

I hear the ones with H's on them are good for any depth, unless at that depth with air... in which case they collectively decide not to participate in any gas reading shinanigans anymore.

They unscrew themselves, stay on the surface, and snicker at all the other lesser spg's :dork:

 

[Tortuga68]

2.5" Tech Spg, Piranha Dive Manufacturing

These are made by the same company that make the H ones, but they work with air too

I don't like the red bit on the face, YMMV