0-20 PSI Stick Air Gage

 

Something my dad and I got to looking at the other day is how inconsistent some of the stick gauges were.  We pulled together about 6 different ones and almost none of them read the same pressure.  There were a few that did and they were in line with the digital gauge I had so the rest went in the trash. 

 

 

 

I did the same thing last summer when I was airing up my trailer tires.  I tried several stick gages.  Most read within a pound or two of 55psi, but a couple were about 5-7 psi off.  I also have a couple of these Milton combination air valve and inclosed stick gage thingy inflator tool like you used to see at the gas stations back in the good old days.  Both of those read 5 psi low also.

 

Back in the stone age when I was racin' motorcycles, I had a Marsh 2-1/2" dial gage with a 1-5 psi range for tires.