Feature(may vary by option.)

●Connect the tool between the spark plug and the plug wire
●The short wire is double ended to offer a straight boot and a 90-degree boot on one tool.
●With the engine running, the tool flashes a mirror image of the ignition spark.
●Quickly diagnose problems with all ignition systems

[InLine Spark Tester w & Coil On Plug Wire]

[Inline Spark Tester]

Description

Connect the tool between the spark plug and the plug wire. The short wire is double ended to offer a straight boot and a 90-degree boot on one tool. With the engine running, the tool flashes a mirror image of the ignition spark. The additional 7" extension plug wire is used on coil on plugs that are recessed and hard to reach.