First, the most recent tire pressure gauge I ordered (Jaco Elite 60 psi gauge) leaked. It would not hold pressure long enough to get an accurate reading. I contacted them, they sent instructions on how to fix, and I fixed it. So I was happy, until.....

I purchased the same gauge approximately a year ago for my SO. I decided to compare readings from the two gauges. One guage read 28.25 psi, the other read 27.25 psi. Jaco claims this gauge is accurate to within 1.5%. 1.5% of 28 psi is .42 psi. My 2 gauges have proven their claim is bull. The gauge I bought at Autozone 10+ years ago, which I didn't trust, reads 28 psi.