non magnetic regs

[deeepdvr]

One more question for my knowledge base.

What is the deal with the non magnetic models of us divers regs? Are they RAMs or AM or DA?

Thanks for all the responses on the post of best regs.

[kgehring]

DA and they also had a Conshelf IV and a civilian Non-Mag version of the Conshelf IV.
There was also a Voit Titan II MR-12 single hose that appears to be a Non-Mag.