2010 and 2011 Winnebago Vista 30W Owners

I use a large external surge protector which plugs into the electric pedestal. After about three to four minutes in lights a green light to advise that the source is acceptable. I had to adjust my setup to wait for the check time but worth it to protect the moho. Mine cost about 300 bucks so it is top of the line. I see some cheaper at Camping World which should be acceptable.