The LP-4100 lightning protector is specifically designed to protect electronic pet containment system transmitters against damage from lightning.

Product Features:

• Protects transmitter through both the electrical outlet as well as the loop wire
• Plugs directly into the wall outlet
• Transmitter's power transformer plugs directly into the side.
• One year warranty
• Works with both the Innotek and PetSafe Fences

Item LP-4100 is a replacement for RFA-28 which has been discontinued.