Romacci Car Spark Plug Tester Detector with Two Holes Ignition Plug Analyzer Diagnostic Tool

Car spark plug tester detector with dual testing holes. In automobile ignition system the high-voltage ignition coil generates a high-voltage (10000 volts or more) and the spark plug diverts it form high-tension ignition coil into the cylinder engine spark between the spark plug electrodes will ignite the mixture. The detector could tell the Good spark plugs from the Bad by the strength of the spark. Features: Car spark plug tester detector with dual testing holes. Can be used to test spark plug performance and ignition strength. Apply to Gasoline vehicles car spark plugs. With it you can test two spark plugs meanwhile and if you suspect any spark plug works improperly you could compare and test to make accurate judgment. East to operate and fast testing. How to Use: 1. Place the Spark Plug into tester hole 1 or 2; If you want to compare the new spark plug and old one place new spark plug into hole 1 and the old on into hole 2; 2. Connect to Power-supply; 3. Turn the key switch 4 clockwise to turn on tester indicator 3 will light up tester is now working at 1000rpm/min. 4. Again turn the key switch 4 clockwise you can adjust the working frequency between 1000rpm to 5000rpm/min. The higher the frequency the stronger the spark strength. Specifications: Power Adapter: Plug * Input: AC * Output: 1A DC Item Size: 145 * 85 * 40mm / 5.71 * 3.35 * 1.57in Package Size: 200 * 100 * 70mm / 7.87 * 3.94 * 2.76in Package Weight: 350g / 12.35ounce Notes: 1. Please Turn Off Power before you place spark plug. 2. The Spark Plug Tester is a high-voltage detector so please do not contact spark plug with hand at work for avoiding danger. Package List: 1 * Spark Plug Tester 1 * Power Adapter