How to wire a voltmeter?

downtheroad wrote:
I'm thinking of installing something similar to this to monitor the AC power in our new trailer. I don't want the 'plug in' type. Would rather have a small permanently mounted hardwired panel.

Question: How do I wire it and to what? Thanks.

This will not monitor power. You would need a watt meter to measure power. This will measure AC volts only. As several have suggested, a plug in voltmeter would be easiest. If you don't want a plug in, than you'd have run two wires from the back of desired meter and land them on an AC source which could be a spare breaker in your main panel or jumper them on to an duplex outlet somewhere. Since it is AC, polarity shouldn't matter but I'd land white on neutral and black on hot just to be sure.