Car LED Display Circuit Tester Pen 602 Auto Electric Diagnostic Disassembly Tool

【Multi-function Test Light】Check if the circuit is powered on; Check whether various lights fail ; electrical circuits and safety components in the car are live ; Test line distinguishing positive and negative poles ; Check the pulse signals of each component ; Check if the real virtual electric string of the line is damaged during the construction of the railway ; Check the real-time voltage of various circuits and electrical appliances.