dawfall Pack-1 Car Ignition Test Pen, High-Voltage Line Coil Spark Plug Detector with Bulb, Universal Car Spark Plug Test Pen, Pen Type Spark Plug Tester Coil Diagnostic Tool for Cars (Multicolored)

With the engine began, put the scratched end of the tool over the trigger plug cable. If the light bulb flashes, the trigger plug cord is bring the trigger plug signal.Function: This examination pen is utilized to spot the functioning problem of the engine trigger plug. This tool can be made use of in both ignition systems and circuit breakers.Application: The stimulate plug tester can be made use of for stimulate plug screening, high-voltage line screening, and ignition coil screening, assisting you plainly and without effort recognize the standing of the ignition coil or high-voltage line.

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