Multi-function Automotive Tester Pen Type Digital Vehicle Electrical Circuit Checker Auto Electrical System Diagnosis Test Device HOME IMPROVEMENT utility shelf

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Multi-function Automotive Tester Pen Type Digital Vehicle Electrical Circuit Checker Auto Electrical System Diagnosis Test Device HOME IMPROVEMENT utility shelfApplications: Can be used to test continuity, test the polarity of a voltage, check lamp, check electric motor, follow and locate short circuits, test for bad ground contacts and measure dc voltage from 2V to 24V etc. Powered by the vehicle battery directly. The illumination function enables automotive technician to test the electrical system in the darkness. Safety insurance. When the current exceeds 8A, the unit will disconnect the current