6-30V Auto Electrical Circuit Tester Short Breaker Finder Continuity 40FT Cable
And P150 electrical circuit tester is built-in circuit breaker protection for the user and vehicle's safety. The working principle of is - the circuit breaker will trip if overload. Equipped with dual LED lights on the top of Topdiag P150 automotive electrical tester, it can light up the dark working area and help users make diagnoses even in the dark.