Spark Plug Tester, Adjustable Ignition Coil Tester System, Coil Pack Tester, Spark Testers Tool, Spark Checker, Autos Diagnostic Test Tool for Automotive, Small Engines, Lawnmowers

Pitch Adjustment Function: The spark plugs tester is equipped with a pitch adjustment valve and a round knob, which can adjust the observation pitch of the spark plugs according to the needs of different car models, and at the same time can effectively avoid the occurrence of misfire and burnt ignition coils

Quality Materials: The use of metal connectors to ensure durability and excellent electrical conductivity, to ensure that the current transmission between the inline spark plug tester and the spark plug is stable and efficient, to improve the accuracy of the test

High Visibility Design: The spark tester for small engine's viewing area scale values are in white font, making it easy to read the scale clearly when measuring gap values from 0 to 40k, even in bright light conditions. This high visibility design enhances ease of operation and accuracy

How to Use: This ignition coil tester tool is equipped with rubber-coated ground wire, grounding alligator clips and springs for safe and stable introduction of high voltage current. To use, attach the alligator clip to the engine, connect the other end to the spark plug wire and check the spark length through the small window. The longer the spark gap, the stronger the coil

Widely Applicable: The spark tester has an overall length of 4.5 inches, a cable length of 19.7 inches and a diameter of 0.92 inches. Designed to ensure compatibility with a wide range of automotive ignition systems, it is an ideal tool for automotive maintenance, small engine inspections, ignition coil testing, and lawn mower maintenance