Professional Inline Spark Plug Tester for Cars, Lawn Mowers, and Engines

Functional Insights

Scope of Application: The spark plug tester is universal and suitable for testing and troubleshooting both small and large internal/external engines, including engines, trucks, automobiles, lawn mowers, marine engines, and motorcycles. It's the preferred product for any personal or professional machinery store or automobile garage.

About Use: Simply connect the tester between the spark plug and the spark plug wire. Within about 30 seconds, the internal combustion engine can be troubleshooted. If the engine emits a spark, the tester bulb will reflect the spark and light up, allowing you to quickly identify the fault point and bad circuit of the spark plug.

Excellence in Material Selection: The tester is made from excellent rubber, metal, high-temperature resistant wire, and environmentally friendly acetate plastic. It operates perfectly in both high and low temperature environments without any impact, and is incredibly durable.

Product Size: The tester features a 2.28-inch metal interface, a 4.44-inch shaft/lamp housing, and a total length of 6.53 inches. The internal bulb can last several years and is easily replaceable through a transparent housing.

Service: Should you have any questions or concerns about the product, please contact us at any time. We are committed to providing you with satisfactory solutions.