



⚡ Diagnose your ignition like a pro—no guesswork, just spark!
The Lisle 20610 Inline Spark Tester is a compact, hand-powered diagnostic tool designed to provide a clear visual check of ignition systems. Featuring a patented dual-ended design with both straight and 90° boots, it fits all spark plug wires and delivers precise spark feedback with ±0.05% accuracy. Certified to meet major safety and quality standards, this tool empowers professionals and enthusiasts to quickly identify ignition issues without batteries or complex setups.




| Manufacturer | Lisle | 
| Part number | 20610 | 
| Item Weight | 113 g | 
| Product Dimensions | 26.67 x 14.61 x 2.54 cm; 113.4 g | 
| Item model number | 20610 | 
| Size | One Size | 
| Color | Red | 
| Style | Inline Spark Tester | 
| Material | Metal | 
| Power source type | Hand Powered | 
| Item Package Quantity | 1 | 
| Measurement System | English/Standard | 
| Measurement Accuracy | +/-.05% | 
| Specification met | CE, EN 61010-1, RoHS, UL | 
| Specific uses | personal | 
| Included components | Spark Tester | 
| Batteries Included? | No | 
| Batteries Required? | No | 
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