---
product_id: 254740982
title: "Lisle 20610 Inline Spark Tester, One Size, Factory"
brand: "lisle"
price: "€ 22.13"
currency: EUR
in_stock: true
reviews_count: 5
category: "Lisle"
url: https://www.desertcart.ie/products/254740982-lisle-20610-inline-spark-tester-one-size-factory
store_origin: IE
region: Ireland
---

# Instant spark visualization Dual-ended design for versatile fit Rapid ignition system diagnosis Lisle 20610 Inline Spark Tester, One Size, Factory

**Brand:** lisle
**Price:** € 22.13
**Availability:** ✅ In Stock

## Summary

> ⚡ Diagnose like a pro, fix like a boss!

## Quick Answers

- **What is this?** Lisle 20610 Inline Spark Tester, One Size, Factory by lisle
- **How much does it cost?** € 22.13 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.ie](https://www.desertcart.ie/products/254740982-lisle-20610-inline-spark-tester-one-size-factory)

## Best For

- lisle enthusiasts

## Why This Product

- Trusted lisle brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Trusted & Certified:** CE, RoHS, UL certified with patented technology for reliable performance.
- • **Compact & Lightweight:** Easy to handle and store at just 0.27 lbs and slim profile.
- • **Instant Spark Insight:** Visualize ignition sparks in real-time to pinpoint issues fast.
- • **Dual-Ended Versatility:** Straight and 90° boots on one tool for seamless compatibility.
- • **Time-Saving Diagnostics:** Quickly identify ignition faults without guesswork or delays.

## Overview

The Lisle 20610 Inline Spark Tester is a compact, dual-ended tool designed for quick and accurate visual diagnosis of ignition system problems. Compatible with all ignition systems, it flashes a mirror image of the spark while the engine runs, enabling fast troubleshooting. Lightweight and certified for safety, it’s a must-have for professionals and enthusiasts aiming to save time and avoid costly guesswork.

## Description

Gives a Visual Check of the Ignition System.Quickly diagnose problems with all ignition systems. Connect the tool between the spark plug and the plug wire. The tool is double-ended to offer a straight boot and a 90boot on one tool. With the engine running, the tool flashes a mirror image of ignition spark.Patent: 6,714,015

Review: Time Saver - Perfect for the job saves time
Review: Excelente producto - Muy útil. Pará identificar fallos en cables y bujías. Y saber si hay chispa.

## Features

- Gives a Visual Check of the Ignition System.
- Quickly diagnose problems with all ignition systems. Connect the tool between the spark plug and the plug wire.
- The tool is double-ended to offer a straight boot and a 90boot on one tool. With the engine running, the tool flashes a mirror image of ignition spark.
- Patent: 6,714,015

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002STSC6 |
| Best Sellers Rank | #36,556 in Automotive ( See Top 100 in Automotive ) #47 in Automotive Spark Plug & Ignition Tools |
| Brand | Lisle |
| Brand Name | Lisle |
| Color | Red |
| Colour | Red |
| Customer Reviews | 4.7 out of 5 stars 6,453 Reviews |
| Global Trade Identification Number | 00083045206101 |
| Included Components | Spark Tester |
| Item Dimensions | 26.7 x 14.6 x 2.5 centimeters |
| Item Type Name | Spark Tester |
| Item Weight | 0.27 Pounds |
| Item dimensions L x W x H | 26.7 x 14.6 x 2.5 centimeters |
| Item height | 1 inches |
| Item weight | 0.27 Pounds |
| Manufacturer | Lisle |
| Measurement Type | Ohmmeter |
| Model | 20610 |
| Power Source | Hand Powered |
| Power source | Hand Powered |
| Specification Met | CE, EN 61010-1, RoHS, UL |
| Style | Inline Spark Tester |
| Style Name | Inline Spark Tester |
| UPC | 083045206101 |
| Unit Count | 1.0 Count |

## Product Details

- **Brand:** Lisle
- **Colour:** Red
- **Item weight:** 122 g
- **Power source:** Hand Powered
- **Style:** Inline Spark Tester

## Images

![Lisle 20610 Inline Spark Tester, One Size, Factory - Image 1](https://m.media-amazon.com/images/I/6146pi8z2WL.jpg)
![Lisle 20610 Inline Spark Tester, One Size, Factory - Image 2](https://m.media-amazon.com/images/I/71Xk1M2Dt-L.jpg)
![Lisle 20610 Inline Spark Tester, One Size, Factory - Image 3](https://m.media-amazon.com/images/I/819JyK96APL.jpg)

## Questions & Answers

**Q: Using this to test the coil on my vehicle. I get intermittent small reddish flash. Not sure how to interpret this? Is any light a positive sign?**
A: Use the tester in a dim lighting area and when you see the reddish-orange flash, that shows a bad spark. A healthy spark will be more intense with a blueish-white spark. I used this tester on my riding mower on June 1, 2015 and replaced the ignition module (same as a vehicle coil). The tester showed the difference before and after!

**Q: Can this be used for my 115 outboard motor?**
A: Yes Ihave used it Mine and Ihave Used it on Lawnmovers

**Q: How many items (testers are in one pack)? The price per packs is confusing.

Kind Regards**
A: One tester. Two adapters.

**Q: How do you use this with a lawnmower that doesn't start? Hooking it up is simple, but then what? Pull the recoil starter rope & look at the light?**
A: Yes, if it starts the light will flash everytime the sparkplug sparks. If it does not start the light will flash everytime the sparkplug gets power and then you know it is not an electrical problem. It can then be either a bad sparkplug or a fuel problem. If it does not flash when you pull the rope then it is an electrical malfunction (ie. magneto, points, or electronic ignition problem). Always test your light to make sure it works on something else that runs.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Time Saver
*by R***N on 19 January 2026*

Perfect for the job saves time

### ⭐⭐⭐⭐⭐ Excelente producto
*by K***N on 13 March 2023*

Muy útil. Pará identificar fallos en cables y bujías. Y saber si hay chispa.

### ⭐⭐⭐⭐⭐ Goood Quailty
*by J***N on 31 October 2025*

Great product and long plug to go down in the cylinder to connect to the spark plug and great to put onto the coils, long enough to see from cyclinder 1 and 8

## Frequently Bought Together

- Lisle 20610 Inline Spark Tester, One Size, Factory
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- Ram-Pro Inline Spark Tester, Plug Engine Ignition 6-12 Volt Fool-Proof – Pick Up Coil/Armature Diagnostic Detector Tool for Automotive, Car, Lawnmower, Small & Big Internal/External Engines

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*Product available on Desertcart Ireland*
*Store origin: IE*
*Last updated: 2026-02-19*