Features and Benefits: ACCURATE: Measures in kPa (0-1800), kg/cm2 (0-18), and Bar (0-18). Meets ANSI/ASME B40.1 standards; GAUGE SWIVELS: Reads at any angle, lays flat in your toolbox. Gauge protected by rubber boot; BACKLIT DISPLAY: Auto-on when tire pressure is detected; auto-off after inactivity to save battery; EASY HANDLING: Durable/ergonomic grip. Quick fine tuning in case you exceed the target pressure; LOCK-ON BALL CHUCK: Full swivel/long hose prevents crouching/backache when inflating/deflating tires;