This is by far one of the most in depth interviews you will find on the web about EMP Shield products, how they work, EMP myths, and an in depth overview of what occurs during an EMP.
EMP & Lightning Protection for Vehicles (DC-12V-W)
Rated 4.97 out of 5
EMP Shield - Home EMP & Lightning Protection + CME Defense (SP-120-240-W)
Rated 4.96 out of 5