This tire inflator is a heavy-duty machine with a built-in brass movement. It can read and inflate tires from 0-150PSI in 3-5 minutes max, and it comes with an LCD Digital Display that shows pressure readings in four units (PSI, BAR, KPA, and KG/CM2). It is equipped with a bright LED light to provide a clear vision to inflate even on dark nights. It is easy to use and can automatically shut off when the air pressure reaches your preset pressure.