Automotive Circuit Tester Color:Blue Built-in Power BankThe option with

Built-in Power BankThe option with power bank charging that with built-in power bank allows you to charge your phone while you’re on the go

An alarm sound made by the item indicates that the circuit breaker has tripped off

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Automotive Circuit Tester Color:Blue Built-in Power BankThe option withOur Automotive Circuit Tester is an electrical tester for reducing diagnostic time in automotive electrical systems. It has short circuit protection and can test for bad ground contacts instantly. Its cable length is about 16ft makes your testing easy. It's a comprehensive test kit. After a simple hook up of the unit to the vehicle's battery, it can conduct a positive or negative battery current to the tip by rocking the power switch forward or