I bought one of the digital guages about 3 years ago. I have 4 standard guages, but seem to get different readings from each. So I got the digital. But do I assume the digital is correct or one of the others??. Do I check them all and the ones that agree become the correct unit??

And where to I find the people who have the absolutely most accurate air quage? I mean is there an atomic air guage like the atomic clock??

Any way, I tossed my digital in the console of my wife's car and forgot about it until 3 months ago, when I found it again. Now I have it in the ash tray of my car. Hopefully I won't lose it again, but I still don't know what guage is most accurate.