Quickly diagnose ignition system issues with the Auto Ignition Clip Check Pen Spark Plug Tester. Designed to test spark plugs, wires, and coils without puncturing the wire, this tool helps both professionals and DIY mechanics ensure proper ignition performance. Compact, lightweight, and easy to use, it’s a must-have for every car owner or technician. Main Features: Accurate Ignition Testing – Detects spark from plugs, wires, and coils instantly No Wire Damage – Tests without puncturing spark plug wires Easy to Use – Simply place the grooved end over the plug wire; bulb flashes if spark is present Universal Compatibility – Works with 6V–24V ignition systems Durable Design – Made of strong ABS plastic, compact (125mm) and lightweight (71g) Professional & DIY Friendly – Ideal for both mechanics and car enthusiasts Specifications: Material: ABS Plastic Size: 125mm length Weight: 71g Voltage Range: 6V–24V Application: Spark Plugs, Plug Wires, Coils Testing Indicator: Flashing bulb