I recommend checking out this product. We hope to do an install T&E review video soon.
Why do you need EMP protection?
See Suspicious Observers' Cosmic Disaster video.
See Dan Bongino's episode where he mentions China and Russia EMP threat.
Washington Examiner: New grid threat: Russia deploys 'first-strike weapon,' and China ready too
The Russian Federation’s Military Doctrine, Plans, and Capabilities for Electromagnetic Pulse (EMP) Attack