an instrument with a display a dial or panel with a needle, or digital readout markings on the face to indicate measurements a bezel and mounting points one or more knobs or buttons a power cord or other connection
gauge which is an instrument with a display gauge which is a dial or panel with a needle, or digital readout gauge which has markings on the face to indicate measurements gauge which is a bezel and mounting points gauge which has one or more knobs or buttons gauge which is a power cord or other connection