I would like to see a new tire pressure gauge that can be hand held with a pressure gauge on it. It would also have a dial that let's you select your pressure. One end goes on the tire, the other end you put the air compressor nozzle on. When it reaches the right pressure the back pressure stops it from letting an more in. This way you get the perfect amount of air in each tire every time. This can't be that hard to make. Plus I want a portable version of it.