VDO Voltmeter Scale: 8V - 16V Voltage: 12V Diameter: 2 1⁄16" (52mm) M4 Stud connection Included: U-Bracket Mounting Hardware Style: Cockpit International, Gen II Cockpit International Gen II is the ideal instrumentation solution when performance and cost effectiveness are both a high priority. Featuring high quality components and rugged materials, Cockpit International II provides the rugged straight foward performance industrial applications require. Cockpit International: These world-class instruments are designed to be the standard in the industry at an economical price. All instruments feature VDO's latest generation patented air core and stepper motor movements for the reliability and durability you've come to expect from a leader in instrumentation. These instruments are made for durability with a choice of two terminals: M4 studs and .250" male spade. All 52 mm instruments feature zinc-plated metal housing and black painted, brass bezels for rugged, reliable service. Each instrument in this product line incorporates standard flood-lit illumination and is available in 12/24-volt applications.