Review on Premium Tire Inflator Air Compressor: 12V DC / 110V AC, 160 PSI, Inflation/Deflation Modes, Pressure Gauge, LED Light, Long Cable, Auto Shut Off by Justin Luna

It's very small, has a digital readout for accuracy, a flash - which saves you money and you have 1/2 psi - and you need that when unscrewing it will 1/ 2 used up! They are always needed in an emergency or when you don't have a car wash with a digital display. The ONLY thing it lacks (I want to know or not be busy) is the ability to suck in air to bring it up to the right level when too much has been released into the environment. So you end up having to manually remove the excess air and then inflate it until it reaches the right level - or increase the level. Also, one of my tires has a scratch on the valve and won't inflate properly, but it will in the car wash. Still a good buy, but find one that can fill the level and pick him up when he overdoes it.