It requires a little care during installation so that no air is lost. Otherwise, accurate and reliable.

I am completing 2 years since I bought it. I use it about every two weeks to adjust my tire pressure to the manufacturer’s exact specifications, as a supplement to a gas station compressor (one of those that, if you rely on them, can even remove air). I like its build quality and its large, easy-to-read display. The LED light is very useful for night use. Its case is excellent. The accuracy of the measurements is good, with a small deviation from reality (you should add half a psi more to stay within range).....But its nozzle does not make good contact with the wheel valve, it requires dexterity. Easily, if you are not careful, you can lose 2-3 psi if you do not apply it immediately. The problem is known for this particular device and among users abroad as well. Too bad.