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Registered
Join Date: Jul 2001
Location: Portland Oregon
Posts: 7,007
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I have six different tire pressure gauges collected over 45 years and they all read differently across the scale.
Several years ago, I sent all of them to a testing lab for calibration and to find out which one was the most accurate in the pressure range that I use most since none of them were linear from 10psi to 40psi.
It was an educational experience to say the least and now I use my digital Longacre more than the rest of them.
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