HUAHA AC 80-300V LCD Digital Volt Meter Voltmeter US Plug Electric Pen Voltage Testers Electrical Instruments -Volt Panel Meter Voltage Tester Gauge (White)

This works well. I leave it plugged into my RV. Reads constant voltage and it lights up. Just plug it in.

good price fast shipping

Easy to read, accurate, simple, reliable, good for R/V 120V plugs to check inverter.

Great product for the price. Very useful at our camper.

I purchased the HUAHA AC 80-300v LCD digital volt meter for my RV so that I can keep tabs on my power levels at different camp sites. I have used the volt meter for over a month and it has served me well to date. I would recommend this product if you are concern about your in coming power levels.

Got this to make sure we have good power to our trailer when camping. It also makes a great night light.

Works as expected. I use this to monitor the voltage when my Motorhome is plugged in at campgrounds

I put this in my RV. It solved a frustrating problem. It was often difficult to tell the quality of power at different places where I parked. Sometimes I had to use long extension cords to plug in at friends houses, etc. Voltage drop can be pronounced over long distances, so with this device, I can tell the exact status wherever I am parked. I am amazed that they dont build them into every RV (although they are becoming more common).

Works great. Already saved my RV. Was at a campground with 150 volts. Turnded power off and had them fix it

plugs in to a/c outlet in my motorhome lets me know instantly what the voltage is when plugged in to shore power it is small enough to not be obnoxious