I use the progressive industries hardwired model
Like it but wish that I would have added the remote display, so on those odd times when it does trip out I can see why without flipping open the bed....
I'd bet that odds are high you'll never need it.... but I figure it's a good idea....
I have had it trip out on low voltage a couple times. Summer time, lots of RV's with AC's running, shabby looking power poles, etc...
As far as I could tell, none of those other RVs lost an AC... so you might argue that i didn't need the thing....but who knows, maybe the future lifespan of those AC's were shortened a bit.
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