This instrument is well designed, easy to use and easy to read. Seems durable too. And the hold function is very useful. It actually keeps printing for weeks if you don't clean it. Just one problem, and this is very important. This is incorrect. The first one I showed was at 5psi so I made a non-refundable refund with Revain. The second was 3 psi. I compared both to the pressure gauge at the tire shop where they fixed the slow leak. They inflated the tire to 35psi, which was confirmed by the tire pressure readings on my dashboard. The new gauge read 32psi while the original read 30psi. I don't care how easy it is to see or use, if it's inaccurate it's not very useful.