backup

Oceanic Geo 2 wrist dive computer in excellent condition, original owner from April 2016. New battery install Dec. 2022 Was used as a backup. I do not have any original packaging or paperwork. Manual can be found online and there are youtube videos about it. $ 90 obo If I ship it, approx $ 10...

I could use some help with this. I'm at my wits end looking for a solution. A couple of years ago, I started using Divemate on iOS. It was great for what I needed. I even bought the Fusion USB adapter so that I can download my dive computer straight into the iPad. It worked very well, I really...

Hi all For deco dives, do you 1. Have one deco/tech computer then a gauge/timer and prewritten dive plan? 2. Use two deco/tech computers If option 1: Do you use the prewritten plan or the computer, as your primary means of following a decompression profile? Do you have the written plan on a...

Say I have Spare Air (the air model, not nitrox) and I have an OOA situation on a nitrox dive. Am I correct in assuming that it's safe to switch to the 20.9% backup for my ascent? I can't wrap my head around it at the moment.