Scared Silly
Contributor
Oh course if the battery dies with any computer when it has AI or not you are going to be bummed. So the above it a red herring unless you are diving tables with an analog watch .
Now regarding the accuracy and precision for analog and digital. Analoge is good for about +/-50psi while a digital pressure gauge is +/-25psi this is on a 0-5000psi range. For all intensive purposes this is the same. Now a digital guage has more arithmetic accuracy eg. it can resolve (display) a lot digits but after the first two they are not significant. The same for an analog gauge just the first two are significant. This is because with the better guages there are ticks marks every 100psi. Which means at best you can resolve 50psi (also the accuracy).
Now in terms of reliability I have had three digital pressure gauges go. I have not had an analog guage go. A good brass SPG is probably more reliable. However, I still use AI and I am currently using a wireless transmitter. I like it because I am too lazy to log my SAC and I like to be able to look and see what my pressure is at a glance. But if I was diving in over head environments I would use my analog spg as the transmitters would just not take being wacked. And that also goes in general.
My suggestion is that if you like the AI do not be afraid to buy it. (BTW we have or have owned two Cobras - I would highly it or the Geeko/Vyper/Vytec, not a fan of the D6/D9 and the jury is out on the new Corba2 Vyper2 which I recently played with).
Now regarding the accuracy and precision for analog and digital. Analoge is good for about +/-50psi while a digital pressure gauge is +/-25psi this is on a 0-5000psi range. For all intensive purposes this is the same. Now a digital guage has more arithmetic accuracy eg. it can resolve (display) a lot digits but after the first two they are not significant. The same for an analog gauge just the first two are significant. This is because with the better guages there are ticks marks every 100psi. Which means at best you can resolve 50psi (also the accuracy).
Now in terms of reliability I have had three digital pressure gauges go. I have not had an analog guage go. A good brass SPG is probably more reliable. However, I still use AI and I am currently using a wireless transmitter. I like it because I am too lazy to log my SAC and I like to be able to look and see what my pressure is at a glance. But if I was diving in over head environments I would use my analog spg as the transmitters would just not take being wacked. And that also goes in general.
My suggestion is that if you like the AI do not be afraid to buy it. (BTW we have or have owned two Cobras - I would highly it or the Geeko/Vyper/Vytec, not a fan of the D6/D9 and the jury is out on the new Corba2 Vyper2 which I recently played with).