A buddy bought a portable surge protector and I was going to get the same, but after some research I discovered I could install the hardwired unit myself, so I purchased the Progressive Industries EMS-LCH W30
unit. I decided on the hardwired model over the portable for 3 reasons: I can't loose it, it can't be stolen from the campground electrical pedestal, and the Fault code reader is mounted inside the trailer.
Here is my install video
. If you follow the enclosed manufactures directions its an easy install.
: I am not
an electrician and if you don't feel comfortable doing electrical work then you should have it professionally installed.