My Viair works fine for my H tires

I don't full time but always travel with the SuperFlow HV-40A2. I picked it up at an O'Rielly's I think but also available on Amazon.

Pretty reasonably priced, compact size, operates directly from a 12V supply and has a max 120psi. Works fine for me to air up the TrailAir, TV tires and air bags and was good for the "G" tires I used to have. Now with the "H" tires I suppose would be good enough to get me to the next truck stop to top off the air in a tire but haven't yet needed it.

One big downside is it only comes with a connection which directly screws into the tire valve. As delivered I have to screw it in while the pump is on, otherwise if I turn it on after connecting it, the fuse will blow every time.

The work around is to also get the SuperFlow Schrader Air Chuck. That gets around the having to connect/disconnect it while the pump is running but I'd prefer the Air Chuck with the built in PSI gauge so I don't have to switch between the air hose and PSI gauge to check the fill.

Ok I really feel silly now.

The SuperFlow does have a built in gauge on the compressor. Never bothered to take off the cover, grrr, just used my good old stand by pen style psi gauge.

The specs on the product page say 150psi max and the gauge tops out at that, but the sticker on the actual compress which is what I've gone by only says 120psi.

Go figure!