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[Choose #2] I have one wrist, one old console air integrated, use most conservative, worst case gave me 5 min extra stop (happened once). But if battery fails during trip (happened 4 times in 7 year) I can continue without missing anything.
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[Choose #1] 1 main AI type, but always have a spare wrist unit and an old fashioned console on boat for that uhoo!
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[Choose #1] Only need 1 DC. If it ever fails, I’ll use my backup depth gauge and watch with tables.
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[Choose #2] always 2....one console and one wrist
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[Choose #2] while working on a liveaboard and doing 4 dives a day
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[Choose #1] One for now but want to get another for backup
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[Choose #2] I’ve had both computers die on the same dive, maybe I need 3!
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[Choose #1] once i get past my adv nitrox and enter tec training 2
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[Choose #1] I have a backup in my dive bag.
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[Choose #1] A dive watch and pressure guage as back up
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[Choose #2] 1 on my gear andI always wear my citizen watch, which is also a computer.
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[Choose #1] Guages and watch as backup
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[Choose #2] I use a wrist mounted air integrated computer, with a console mounted back-up computer and an old fashion pressure gauge.
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