1. Enhanced Performance: Detect potential ignition issues and weak in a timely manner with the Spark Plug Tester's precision circuit design. Prevent engine performance degradation by accurately detecting spark plug conditions, thanks to its advanced circuitry. 2. Easy to Use: Easy to understand even for non-expert car owners, with LED lights clearly indicating the working status of the spark plugs, providing an intuitive display of test results. 3. Advanced Protection: By incorporating built-in safety protection mechanisms, our Spark Plug Tester ensures stable testing even in high-temperature conditions. Preventing short circuits, overloads, and other risks, it maintains good working conditions and delivers long-term dependable testing results: giving you peace of mind whenever you check your car's ignition system. 4. Light Weight: your spark plugs are in top shape with our tester. Its compact size fits greatly in your gloves compartment or tool bag, making it a portable companion for daily or long trips. 5. Versatile Testing: This Spark Plug Tester is designed to fit most vehicles, from family cars to SUVs and commercial vehicles. With two standard plugs and double plug compatibility, it delivers versatile testing capabilities for enhanced diagnostic accuracy. Name:Spark Plug Tester Scope of application:automobile Item Type:Ignition Testers Power Adapter:Input 100-240V AC/Output 12V 1A DC Spark plug base increase hole 12MM (before 1.1cm) compatible with more spark plugs as much as possible Use precautions: Before use, please add gasket to that the spark plug contact is solid and secure (spark plug side is negative)! Plug Type:US Plug, it applies to Canada, India, Mexico, Thailand, Taiwan, the , the Philippines and so on. Voltage:AC100-240V Colour:As Shown Material:Plastic+Metal Package Contents: 1 * US plug 1 * EU converter 1 * spark plug tester 2 * limit gaskets Only the above package content, other products are not included. Note: Light reflection and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.