Works with all 12 volt batteries Exclusive triple protection The only suppressor made in the USA Battery does not have to be disconnected Works on all domestic and foreign vehicles-Tec Surge Suppressor protects all relay switches and computers when MIG welding while battery is still connected. Disconnecting battery loses important computer memory and still does not protect relay switches within 2 feet of MIG welding. By attaching the Pro-Tec Surge Suppressor you're guaranteed protection against any transient voltage spikes.
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