General description Made of high-quality plastic and metal, this ignition tester is a durable diagnostic tool designed for cars, trucks, motorcycles, lawnmowers, and other internal combustion engines. It quickly and easily diagnoses the functionality of the ignition system, helping to prevent ignition coil fires and burns. Technical specifications Material: Plastic + Metal Color: Black Jumping Distance: 0.8-1.5 cm Normal Spark Plug Appearance: Purple-blue, straight line, 2 cm long Compatibility and accessories Suitable for all internal combustion engines, including cars, trucks, motorcycles, chainsaws, brush cutters, snow blowers, and generators Package includes: 1 spark plug tester with cable Usage To use the ignition tester, connect it to the spark plug and spark plug wire. The screw assembly allows for quick and easy adjustment of the electrode gap. A normal spark will appear purple-blue and straight; if it appears red or curved, the ignition coil may be faulty.