Tire reading becomes a real pain due to the tilt head on the gauge. You think it will make your life easier, but it really isn't. Car tires just can't take that angle. Maybe some big truck brands? In my use I've found it difficult to get a good seal, so air escapes and you don't get good pressure readings. On the plus side, if you can get a good seal and are at the right angle, the large dial is really good. I don't know if it's accurate or not. That definitely doesn't match what my tire inflator reads, so I scratched the back of my head a bit. I need a 3rd sensor to make it final.