Autometer Marine Carbon Fiber 2-1/16in 18V Electric Voltmeter Gauge

Keep Tabs On The Health And Output Of Your Boats Electrical System Safely And Accurately. With A Patented Air Core Meter Movement, This Gauge Operates With Category Defining Accuracy Anywhere From 8-18 Volts On Negative Ground Electrical Systems. Installation Is Simple And It Can Keep You From Being Stranded On The Water.
Installation Instructions