Thanks for the replyI have been using the surge protector from Progressive Industries. I am using the 30 amp model and it has been great. They also make a 50 amp model. It has a display to show the current voltage, amps, hertz, and if there are errors with the wiring, so you know before you connect your rig. It isn't cheap, but replacing all of the electronics on a rig isn't cheap either.
I have also been using the Progressive Industries portable unit for several years, and it seems to work great. I has often had it tell me there was reverse polarity, or some other wiring problem before I had the rig hooked up. It self destructed on two occasions - once during a thunderstorm, and once in a place where there were sever voltage dips - but Progressive repaired it at no cost both times .....Waiting on the 2016 302FBH with 50 amp service to come in. Been buying additional items and wondering what surge protectors others are using with good results. Thanks for the input.