I have Lacrosse by prime Time. I bought the hardwire version from progressive industries...it is great and I installed it easily myself. Was under 300 bucks where I got it but prices vary. It has a remote display that tells the current voltage and amp draw...along with any problems. It worked just last weekend. I plugged into a site with an open ground...it wouldn't power my rig...was nice..also has a bypass switch just in case u absolutely need power and want to by pass protection...I did quite a lot of research and this seemed the most featured for the money.
I lost an air conditioner years ago on my Montana fifth wheel to a power surge. For the money it is a wise investment ...
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