Difficult to control choke from valve stem, especially at 90psi. inches and above when used as a pressure gauge. If I need 120psi, I have to pump to 140psi until my compressor is at max. So if I pull the quick-release chuck after the air hiss, I still have 120psi left. It glows in the dark, especially if you first shine the dial in front of the headlights. I may find or replace a better air cartridge in the future if available.