This triple gauge kit monitors battery and charging circuit operation system and gives high performance with a great racing look. The kit consists of an electrical voltmeter, mechanical oil pressure gauge, and mechanical oil/water temperature gauge. Blue line styling against the black 2-in dial face with white digits adds style and readability to its look. It has 12-volt internal lighting and is designed for negative ground systems. It includes gauge and mounting hardware but requires a hook-up wire for the voltmeter.