Anti-Zap Surge ProtectorPN: 32 020 No more unhooking the batteries when needing to weld on equipment! With this Anti Zap Surge Protector, simply clamp on the + and of the battery, watch the light come on, and you're good to go! Provides protection for sensitive electronics, reduces labor time, and pays for itself after one or two uses. Protects vehicle electronics during MIG, TIG, or Argon Arc welding.