Will you be using electrical hook ups??
Then Yes! And not just to protect from surges, lightning and brown outs but to verify the power is good before hooking up the trailer.
We had occasion to pull into an RV park in Moab after 10 days of dry camping. Got the Cougar all backed in and level and went to hook up the utilities. Because we had the surge protector, I discovered the pedestal was wired backward and the 3rd wire ground was not hooked up. Found out during the repair that the previous camper had pulled out without disconnecting from the pedestal and some "other" maintenance guy had done the repair. Just shows you never know until you verify what the power issues are
