IVELECT Auto Car Ignition Electrical Test Pen Ignition Spark Indicator Spark Plugs Diagnostic Tool Silver&Red - Product Features
- Spark Indicator -Tests For Spark Plugs, For Spark Plug Wires and Coils Without Puncturing the Wire.
- Spark Indicator -Tests For Spark Plugs, For Spark Plug Wires and Coils Without Puncturing the Wire.
- With the engine running, place the grooved end of the tool over the plug wire.
- High intensity bulb and viewing window for greater flash concentrating,The bulb will flash to indicate spark.