Loren Ross wrote:
Just looked at these on Amazon.  66 customer reviews posted, and it seems that Progressives have about a 20% failure rate right out of the box...  Yes they repair and re-send them, but WOW...  That's an awful lot of bad units, don't you think?  I've been using the Surge Guard for 8 years and have only lost one due to a lightning strike next to the rig.  Not sure I would switch to Progressive just yet.  Sounds like they have some quality control problems...
I have had mine for 8 yrs and never had a problem with it. It has saved me from low voltage and open neutrals. I do not see many threads on RV forums about Progressive EMS failures
Don