Moroso's Digital Tire Pressure Gauges feature an easy to read 2'' wide display window that reads to hundredths. The high quality gauge has an auto-off feature that will shut-off after 20-minutes with out use. Gauges are individually calibrated for accuracy. The readout can be displayed in PSI, Bar, Pascal, and HG. A low battery indicator will let you know when the included 9V battery is on its way out. Includes a foam-lined storage case and a 16'' hose with a finger operated air-bleed valve that allows you to release pressure quickly.