Mechanic recommended, performance tested, & certified precise pressure readings up to 200 psi with display resolution to 0.10 psi increments. Built from super strong brass & steel parts shielded by our rugged shock-resistant gear-style protective guard. Flexible 10” no-leak rubber air hose with super handy 360-degree interchangeable advanced angled chuck for easy access to the tire valve. All readings lock-on to the display until the “on” button on the gauge is pressed to reset to 0 psi. Integrated air bleeder valve to reduce pressure in overinflated tire. Large 2” lcd display screen with battery life indicator.