Automotive spark plug tester detector with two-hole spark plug analyzer diagnostic tool

Features: 1. The frequency is adjustable, allowing for detection of the ignition power setting under different working conditions. 2. The bypass detection table design is improved, and the bypass hole is moved away from the adjustment knob, making it safer to use. 3. With 3 indicator lights, it can detect if there is an incoming signal. If the ignition is not set, the problem lies with the instrument or the spark plug, providing a more accurate diagnosis. 4. You can assess the quality of the spark plug: a good spark is indicated by a straight spark, while intermittent sparks indicate problems. 5. The degree of aging of the spark plug can be assessed. Bright purple sparks are best, while dark red sparks indicate poor aging. 6. Spark plugs of different brands and specifications can produce a strong flash and a loud sound under the same signal, and vice versa. 7. Standard power supply ensures more stable flashing and longer lifespan. With European standard adapter. Automotive spark plug testing principle: In the car's ignition system, the high-voltage ignition coil generates a high voltage (greater than 10,000 volts). The spark plug transfers this voltage from the high-voltage ignition coil to the engine cylinder. The spark between the spark plug electrodes ignites the mixture. The strength of the spark can distinguish good spark plugs from bad ones. Precautions for using the automotive spark plug tester: 1. Please turn off the power before installing the spark plug. 2. The spark plug tester is a high-voltage detector. Do not touch the spark plug with your hands during operation to avoid danger. The higher the frequency, the stronger the spark. Automotive spark plug tester user manual: 1. Place the spark plug in test hole 1 or 2. If you want to compare the new spark plug with the old one, place the new spark plug in hole 1 and the old spark plug in hole 2. Connect the power supply. Turn the key switch 4 clockwise to turn on the tester; indicator light 3 will illuminate, and the tester will operate at 1000 rpm. Turn the key switch 4 clockwise again to adjust the operating speed between 1000 rpm and 5000 rpm.