It's a tire gauge... not much to say, it tells tire pressure. It's small and easy to use.
Curtis - December 5, 2011
Cruz Tools - tire-pro digital tire gauge
It is light weight and well formed. However, it does not capture the valve as well as other units have done. It lends itself to deflating rather than just measuring pressure. No question that operator error is involved yet it should not be so temperamental that it does not work better in getting on the valve and not releasing a lot of air or worse yet, nitrogen.