<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto">Um. A mechanic with a calibrated gauge? I’m not thinking so. He (or she) has got the one he bought from the Snap-On/Mac/Marco truck and when it goes wonky on him, he buys a new one. <div><br></div><div>If your mechanic claims to have a calibrated gauge, ask where it was calibrated and to see the cal cert traceable to NIST. And don’t hold your breath. </div><div><br></div><div>One of our labs does calibration of the high pressure, fast response pressure transducers they use. It’s a nontrivial operation. <br><div><br><div dir="ltr">Tom Coradeschi<div>Tjcora@icloud.com</div></div><div dir="ltr"><br><blockquote type="cite">On May 30, 2022, at 12:28 PM, eric@megageek.com wrote:<br><br></blockquote></div><blockquote type="cite"><div dir="ltr"><span style=" font-size:10pt;font-family:sans-serif">There is a very easy
way that I calibrated all my TPG.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Go to a trusted
mechanic that you are friendly with. Ask him if he has a calibrated
gauge. (He most likely does.)</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Then, check all
your tires. Then, check your tires with your gauges. Compare
the readings.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">I found that my
'accu-read' is spot on. My cheap HF ones are within a PSI. I
make a note like "reads +1PSI" on the gauge and I'm good to go.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">I do this about
once every 3 or 4 years. I have noticed no read drift of the gauges.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Then, give your
buddy a 6-pack/gift card/ whatever token you have of appreciation.</span>
<br>
<br><span style=" font-size:10pt;font-family:sans-serif">Moose</span>
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