JACO ElitePro Tire Pressure Gauge - 100 PSI Mechanic Recommended: Performance tested, certified accurate, & calibrated to ANSI B40.1 International Accuracy Standards (2-3%), ensuring precise tire pressure readings without relying on batteries Feels solid in the hand & built from premium heavy duty components shielded by a rugged gear-style protective guard; features a flexible no-leak air hose making checking tire pressure easier than ever Robust design is equipped with a built-in air bleeder valve to reduce pressure in overinflated tires, and the handy 360-degree swivel chuck allows for easy access to the tire valve from any angle Larger, 2" glow dial features easy-to-read 100 PSI single increment scale that glows in the dark, providing accurate readings that "lock" in place until the pressure reset button on the neck is pushed FREE 100% Lifetime Satisfaction Guarantee when you order today, so click "Add to Cart" with confidence and enjoy longer-lasting tires, improved gas mileage, and a smoother car driving experience