Bests & Worsts Reviews from Amazon

Not what it's supposed to be. Does not stop surges as it was advertised too. Called progressive industries to ask a question and that's when I found out it was basically a unit that tells you if the electrical was wired up correctly or not, it does not stop surges or protect anything. For that kind of protection, you need EMS-PT30x or the 50x model. Pic is the unit that has surge, over current, under currrent, wrong wiring, etc.