OP here: My digital readout for my Surge Guard varies in readings. Today it has pretty much ranged from 131 on line 1 while line 2 read 124 to another reading was 128 on both lines. In the last 10 minutes it was 126 on line 1 while line 2 was 129. Right now line 1 is 129 while line 2 is 127.
I have not tested shore power plug because my multimeter prongs are not long enough to reach inside of the shore power plug. Slightly disappointed in the private campground because their electrician is actually on site today (100 whole yards away) and has not come up to take some basic test readings from the shore power plug.
