Automotive spark plug tester, detector with two holes, spark plug analyzer, diagnostic tool 5.7x3.35x1.6 inches

Features: 1. The frequency is adjustable, allowing for ignition timing detection under various working conditions. 2. The improved design of the ignition timing sensor; the ignition timing hole is positioned away from the adjustment knob, making it safer to use. 3. Equipped with three indicator lights, it can detect whether there is an incoming signal, an instrument problem, or a spark plug issue if the ignition is not properly adjusted, providing more accurate diagnosis. 4. It can determine if the spark plug is good or bad; a straight, continuous spark indicates good performance, while intermittent sparking is problematic. 5. It can assess the spark plug's age. A flashing spark and bright purple light are good, while a dark red light indicates severe wear. 6. It can test spark plugs of different brands and specifications. Under the same signal, a strong flashing light and a louder sound are preferable, and vice versa. 7. Standard power supply, more stable and durable flashover. Car spark plug testing principle: In the automotive ignition system, the high-voltage ignition coil generates a high voltage (10,000 volts or more). The spark plug diverts this voltage from the high-voltage ignition coil to the cylinder head. The spark between the spark plug electrodes ignites the mixture. The detector can distinguish good spark plugs from bad ones by the strength of the spark. Car spark plug tester usage notes: 1. Please turn off the power before placing the spark plug. 2. The spark plug tester is a high-voltage detector, so do not touch the spark plug with your hand while operating it to avoid danger. The higher the frequency, the stronger the spark. Car spark plug tester user manual: 1. Place the spark plug in hole 1 or 2 of the tester; If you wish to compare the new spark plug with the old one, place the new spark plug in hole 1 and the old one in hole 2. 2. Connect to the power supply. 3. Turn the key switch 4 clockwise to turn on the tester; indicator 3 will light up, and the tester is now operating at 1000 RPM. Note: All data is measured manually; please allow for a 1-3 cm error. Due to differences in lighting and display settings, there may be some color variation; the actual product received shall prevail.