AutoMeter atmP344328

The AutoMeter Spek-Pro digital voltmeter is a 2-1/16-inch, stepper-motor instrument for monitoring vehicle electrical system voltage from 0–16 volts on negative-ground systems. It features ultra-smooth needle movement and includes a pre-wired harness and spin-on bracket for simplified installation. User-selectable backlighting in seven colors and adjustable brightness, peak recall, Pro-Control output to trigger relays or alerts, and configurable high/low warnings make it a versatile monitoring tool for street or race use.