Voltmeter
A voltmeter is an instrument that measures the difference in electrical potential between two points in an electric circuit. An analog voltmeter moves a pointer across a scale in proportion to the circuit's voltage; a digital voltmeter provides a numerical display. A voltmeter works differently. Instead of reading electrical flow, it reads voltage. This means the gauge will measure voltage across a ground and a positive wire. New cars use voltmeters, which are preferred by most street rodders. Most alternators typically put out between 13.8 and 14.5 volts while charging.

52mm Vintage Gauge Series - Voltmeter

52mm digital gauge

52mm Performance Voltmeter

52mm Vintage Gauge Series Voltmeter 24V

52mm Digital Dual Display Voltmeter Red LED

52mm Marine Outdoor Gasoline Voltmeter

52mm Digital Voltmeter Gauge

45mm Performance Miniature Voltmeter Gauge

52mm Digital Dual Display Voltmeter Blue LED

(LIMITED SUPPLY) 52mm Digital Dual Display Bar-Graph Voltmeter