Adjustable & Lightweight Spark Diagnostic Tool. Efficient Coil-on Plug Tester. Manufacturer Part Number: Spark Plug Tester EAN: 04895192448718 Unit Quantity: 1.0 Type: Ignition Coil Tester,Spark Plug Tester,Coil-on Plug Ignition Spark Circuit Tester,Autos Diagnostic Tool.