[RoadRunnerTR21]

Thanks for everyone's input. I ordered the Milton Industries S-577A gauge yesterday and should get it next week. The one thing I really like about this gauge is that you can air the tires and see the pressure at the same time. If you over fill you can bleed the excess pressure. This can all be done without disconnecting from the valve stem. This comes in real handy when your are dealing with dual rear wheels. I'll check the accuracy next week. Both the truck and car have digital read outs for tire pressure. I haven't put the TST 507 sensors on the coach yet but when I do they will have a digital read out as well. I'll report what I find.