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· Registered
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<font color='#0000FF'>Just got back from the Azores (trip report to follow sometime this week) and heard of a fatality of a diver who run out of air but his SPG still noted 30bar, apparently a grain of sand jammed the indicator. I've also heard of the background (where the numbers are printed) to slip to indicate wrong readings).
This made me wonder on the reliability of SPG's, by the way how many of you have them serviced?
In the ideal world maybe AI computer and a backup SPG is the best combination?

(P.S Azores was great, wait for the trip report  
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