Features and Benefits: * Connects to battery, and becomes part of vehicles electrical circuit * If a voltage spike is detected, the Antizap automatically clips it to a safe level to prevent damage to sensitive electronic systems * Protects fuel gauge, ABS brakes, radios, tape and CD players, car alarms, SRS air bags, LED instrumentation, EFI, fuel, and climate control systems * Protects against welding (Arc, Mig, and Tig)