Prosport Stepper Motor Voltmeter Prosport gauges offer an unbeatable quality/Retail EUR inc VAT" ratio giving you the quality and function of an expensive gauge for a great "Retail EUR inc VAT". An voltmeter is a great way to keep an eye on your engines electronics. If your voltage is dropping you are made aware early of component failure and under performance of electric powered components such as fuel pumps and coil packs. Prosport gauges are SEMA award winners a testament to their quality function and design. When the gauges are powered up they perform a ""sweep"" animation and once turned off the gauge is completely black. Each gauge is supplied with the relevant accessories and wiring to make installation as quick and easy as possible."