Double Spark Plug Tester With Two 12 Mm Spark Plug Sockets

FEATURES Double-hole tester: Equipped with two spark plug sockets, this tester allows you to test two spark plugs simultaneously (good and bad). By comparing the spark intensities, you can accurately assess the performance and ignition intensity of each spark plug. Protective cover: Designed with a protective cover to prevent the risk of electric shock during the test and ensure safe operation. Adjustable working frequency: The rotary switch allows you to set the working frequency in the range of 0~6000 rpm. Higher set frequencies result in stronger spark intensities and provide more accurate test conditions. Accurate data: The tester can simulate engine operations and accurately reproduce the speed of the car to provide reliable data. High quality ABS material: Made of high quality ABS material, the tester is shock and heat resistant, providing long-term service and reducing costs associated with frequent tool changes. Plug and Play: Easy to use, simply plug in the