The Pro-Tec Surge Suppressor protects all relay switches and computers when mig welding, while the battery is still connected. Disconnecting the battery loses important computer memory and does not protect relay switches within 2 feet of mig welding. By attaching the Pro-Tec Surge Suppressor, you're protected against any transient voltage spikes.
- Works with all 12 volt batteries
- exclusive triple protection
- Made in USA with lifetime warranty on product
- Battery does not have to be disconnected
- Works on all domestic and foreign vehicles (do not use on hybrids)
- ART40 Surge Suppressor