Originally Posted by wingnut60
Curious as to how you know your digital gauge is accurate within +/- .5 psi?
If you read the documentation that accompanies the device you will find a specifications listing. Accuracy is +/- 1% + .5 psi in .5 psi increments. My bad, should have qualified my statement better. For an RV tire of 100 psi, your looking at +/- 1.5 psi.
Also, you can get a good indicator of your gauges accuracy by visiting a Discount Tire Center where they have a digitally controlled airing system. These systems, I have been told, are calibrated regularly. You can then check your device against a known tire inflation pressure.
2003 Holiday Rambler Admiral SE W22 8.1L
Summer in Michigan, Winter in Panama City, FL