Air integrated comp (hose) and . . . what other instrument?

[Juris Diver]

I have a Cobra and am wondering what additional instruments I should combine with it.

Do you use a dive watch, another computer on your wrist, something else, or is your Cobra (or similar) all you need?

If you're using an additional instrument(s), what is your reason?

Thanks a lot!

 

[divegirl]

I know a lot of divers choose to have a back up computer or gauge system. My husband and I each have a Cobra and dive with no back up computer. When we go on a dive vacation, my husband does bring along his dive watch. Have not had a problem.