Craftsman C3 19.2 volt Cordless Inflator —
I have a friend that owns a motorcycle shop and when I saw this tool at his shop I had to have it. Its so convenient to take anywhere and is quite accurate. The people that say you have to inflate to about 2lb psi more than it reads are correct in that it does not account for the pressure in the actual hose. This is where the discrepancy of the 2lb psi comes from.
Knowing this, I always just inflate to 2lbs more than I need and when I stop filling with air, VOILA! Accurate to where I needed it.