How do you wire a volt gauge in a car?

0:051:02How to Install a Basic Volt Meter Video - Pep Boys - YouTubeYouTubeStart of suggested clipEnd of suggested clipThe lights for the gauge are controlled by the output from the headlight switch and essentiallyMoreThe lights for the gauge are controlled by the output from the headlight switch and essentially thats it. If you have an S or sender port on your gauge. This is not used and should be left open.

What does an ammeter measure simple?

Ammeter, instrument for measuring either direct or alternating electric current, in amperes. An ammeter can measure a wide range of current values because at high values only a small portion of the current is directed through the meter mechanism; a shunt in parallel with the meter carries the major portion.