My SCBA at work has an audible signal (used to be a bell, now it's vibra-alert) that activates when bottle gets to 25%, indicating it's time to stop playing with the fire and go get another bottle. It would seem, for recreational diving, if you started your dive at 3000-3200 psi, your system would activate at roughly 750 psi, allowing you to begin your ascent, do your safety stop and get back to the boat with the magic 500 psi.
I don't use an AI computer, so I don't know if this is a feature that's already incorporated in some way.
I suppose the down side would be that folks would stop looking at their SPG periodically throughout the dive, coming to rely on the low air alert to know when it's time to head topside.
John
I don't use an AI computer, so I don't know if this is a feature that's already incorporated in some way.
I suppose the down side would be that folks would stop looking at their SPG periodically throughout the dive, coming to rely on the low air alert to know when it's time to head topside.
John