You should all install this in your campers. They have a 30 amp model and a 50 amp model. I like the remote display so you know what is going on and you can also see how much power you are pulling.
If anything goes wrong like high power, lower power, spikes, freq out of range, miswired power pole etc, this thing will cut off the power and save your trailer from popping things. A fridge or AC costs a bunch to replace. Cheap insurance and no worries of a gen running away and blowing things either.