The boundary wire in your yard acts like a giant antenna drawing in any current transmitted through the ground during a lightning strike, even if that strike is hundreds of yards away. While the protection built into your home as well as your underground dog fence transmitter will provide some protection for surges coming through your household wiring, none of that will stop the surge that comes through the boundary wire.

Lightning Protection for Underground Dog Fences
$35.95

Protect or Disconnect™ Circuitry
- In the event of a rare catastrophic surge, such as a massive direct lightning strike, it disconnects the transmitter.
Protects Against AC Power Surges and Lightning
- Specifically designed for use with all PetSafe electronic containment systems with protection for the AC Adapter and transmitter loop wire.
Increased Surge Current Ratings
- The protector has a larger capacity to dissipate surges
Reduce the Risk of a System Failure
- Protects the transmitter so it can continue to keep the pet inside the designated safety zone.
Space Saving Design
- Low profile unit plugs directly into the wall. The transformer plugs into the side of the unit for better balance and stability. There is even an extra convenience outlet.
Better Loop Connectors
- Easier to attach the loop wires to the unit.
Lifetime Product Warranty
- The lightning module shall be free of any defects in design, materials, or workmanship, and we will repair or replace any defective product.