Originally Posted by
JeffOYB
As I posted at the start, I understand it's all relative. Doesn't matter. Still... once one declares that they've made a precision gauge and they put numbers on it... It's hilarious. This is the most precise gauge I've ever bought. What should be the most suited for the task I need. ...And it is apparently by far the least well-marked I've ever seen. It might be a third off! It is lame as heck to sell a "precision" gauge that reads 45psi while a cruder gauge reads 60.
OTOH, it might be spot on.
In fact, if I had to bet, I'd put my money on the Meiser over your other one. I'm very familiar with them, and know they're quality instruments rated to be accurate to within 3% of the scale, or within 2psi on a 0-60psi scale. When they go bad, they err high.
Also, keep in mind that gauges are calibrated at the center of the scale, and are most accurate there, and less accurate towards either end.
But, you're like the guy with two watches who can never be sure of the time. Either check your gauges as I explained earlier, or check against a number of other gauges to see which best matches the average, or simply stop worrying about it, and use either to consistently duplicate whatever pressure you feel rides best.