^
I have this same setup at home, but I still re-check the pressure with a digital meter. I don't love the "truck" style filler, partly because half of my bikes don't have the 90 deg stem (slowly moving over) so I still have one of the old ball-type chuck.
I just would never trust the integrated gage type as it gets knocked around a lot.
Just use a separate gage. They have tiny digital ones that are awesome and cheap.
Home Depot has a bunch of these different kinds in their tools section corral (as does Harbor Freight if you are near them...)