3.5-36V Digital Car Power Circuit Electrical Tester. Quickly identify polarity without pressing a button. The surface probe instantly detects whether a circuit is live, with a red LED indicating positive polarity and a green LED for negative, streamlining the diagnostic process.
It can quickly check the power, grounding, and conductivity of any circuit. 【Practical Automotive Circuit Tester】 KINGBOLEN ECT200 can quickly detect short circuits and broken wires in vehicle electrical system components.
When the ground test passes, the green light will light up. Connect the auxiliary grounding wire, connect the probe to the socket of the trailer sensor, and then press the (+) button to test the function and direction of the trailer light.
Intuitive interface with ergonomic design makes it be best gift for all novice drivers or pro circuit repairers. 🥇【11 Languages & 36 FT Total Length & Wide Application 】KINGBOLEN electrician tools support 11+ Languages, such as English,German, Italian,Portuguese,French,Japanese,and Chinese etc.