⚡ Diagnose like a pro, spark your engine’s true potential!
The Lisle 20610 Inline Spark Tester is a compact, hand-powered diagnostic tool designed to visually check ignition systems by flashing a mirror image of the spark. Featuring a dual-ended design with both straight and 90° boots, it fits all spark plug types and weighs just 4 ounces, making it an essential, reliable tool for quick and accurate ignition troubleshooting.
| Brand | Lisle |
| Power Source | Hand Powered |
| Style | Inline Spark Tester |
| Color | Red |
| Item Weight | 4 ounces |
| Item dimensions L x W x H | 10.5 x 5.75 x 1 inches |
| Measurement Type | Ohmmeter |
| UPC | 083045206101 |
| Manufacturer | Lisle |
| Global Trade Identification Number | 00083045206101 |
| Model | Lisle 20610 Inline Spark Tester |
| Product Dimensions | 10.5 x 5.75 x 1 inches |
| Country of Origin | China |
| Item model number | 20610 |
| Is Discontinued By Manufacturer | No |
| Manufacturer Part Number | 20610 |
| OEM Part Number | 20610 |
G**D
Easy and Shock-Free
There’s an Old Guy in every neighborhood who knows how to fix stuff. Back in the day, our local Old Guy taught me how to check for spark on a small engine by pulling the spark plug, grounding it against the engine block, and having someone yank the starter. You can usually see the plug spark — and about half the time, you get a shock.This tester is way easier, and there are no shocks involved. Stick it between the cable and the plug, turn the flywheel (I use a socket attached to a cordless drill), and the tester either lights up or it doesn’t. Somewhere, that Old Guy is shaking his head.
R**R
Test for spark without getting shocked!
This spark tester worked great. Not one time did I get shocked.
S**4
Would repurchase
Great product
A**P
Good buy
Seems to work good. Happy with purchase.
V**R
Maybe the BEST spark tester!
Well made. Nice to be able to change the configuration from straight connector to right angle connector. The extra length of the silicon coated wire is useful. The light can easily be seen even when using the ignition coil of a small pull start engine.
J**Z
Works very well
This spark detector works reliably and is reasonably priced.
A**R
Works great for testing spark and for coil packs
No issues
R**E
5/5/25 re- thank you,
nice check sparks, add to my small engine kit.
Trustpilot
1 day ago
2 weeks ago
