- The LUTIFIX SPT-101 spark plug tester is a professional tool designed to diagnose the performance of spark plugs in gasoline engines - Allows testing of two spark plugs at the same time thanks to its dual-hole design - Adjustable working frequency from 0 to 6000 rpm to simulate different operating conditions - Compatible with car and motorcycle spark plugs, making maintenance and fault detection easier - Made of high-quality ABS, impact and heat resistant, with a transparent protective cover for added safety - Power and high voltage indicator light for clear observation of the spark plug status - Simple operation: insert the spark plug, connect the tester, and adjust the desired frequency - Includes all necessary accessories for immediate use: main unit, box, manual, and power connector - Ideal for mechanical workshops, professionals, and enthusiasts seeking precision and efficiency in spark plug diagnostics