Review on YANTU Cordless Portable Tire Inflator: Rechargeable Electric Air Pump for Car Tires, 150 PSI, Digital Display, Removable Battery by Robert Blanton

I had a nice little AC pump but it was annoying because it had a screw cap for the tire valve stems so I couldn't put it on quickly. or off, but I had to screw it in and out all the time. The analog needle wasn't reliable at all, especially as it bounced around so much during use and if you stopped it long enough to see a reading it was still off. . And this winter one of my jeep tires seems to be starting to leak, so when the temp drops below 20 or so I get under 30 psi pressure and I need to fill up. Very uncomfortable to do with the old. This one, a standard tire valve clamp, adjusted the pressure and drove off. The only odd thing for me was that I knew it was supposed to stop on pressure, so I expected it to shut itself off, which it doesn't, it keeps going by just not sending more pressure into it. My gauge and TPMS read the same 41 PSI so I was very happy.