---
product_id: 3746066
title: "20610 Inline Spark Tester"
brand: "lisle"
price: "E£ 3035"
currency: EGP
in_stock: true
reviews_count: 13
category: "Lisle"
url: https://www.desertcart.com.eg/products/3746066-20610-inline-spark-tester
store_origin: EG
region: Egypt
---

# Instant spark visualization Dual-ended design for versatile fit Rapid ignition system diagnosis 20610 Inline Spark Tester

**Brand:** lisle
**Price:** E£ 3035
**Availability:** ✅ In Stock

## Summary

> ⚡ Diagnose your ignition like a pro—don’t get left in the dark!

## Quick Answers

- **What is this?** 20610 Inline Spark Tester by lisle
- **How much does it cost?** E£ 3035 with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.com.eg](https://www.desertcart.com.eg/products/3746066-20610-inline-spark-tester)

## 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

- • **Durable & Portable:** Lightweight 4.3 oz design built for on-the-go pros and weekend warriors.
- • **Dual-Ended Versatility:** Straight and 90° boots in one tool for all spark plug setups.
- • **Instant Spark Feedback:** See ignition health in real-time without guesswork.
- • **Time-Saving Diagnostics:** Cut troubleshooting time dramatically with inline testing.
- • **Universal Compatibility:** Works seamlessly with all ignition systems, from small engines to V8s.

## Overview

The Lisle 20610 Inline Spark Tester is a compact, dual-ended tool designed to provide instant visual confirmation of spark presence in any ignition system. Lightweight and easy to use, it connects inline between spark plug and wire, flashing a mirror image of the ignition spark while the engine runs. Trusted by professionals and DIYers alike, it dramatically speeds up engine troubleshooting and fits a wide range of spark plug configurations.

## 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: Why did I wait so long to buy one of these? - This device saves so much time trying to determine if a small engine has spark. It is so much easier than pulling the spark plug and trying to prop it up against the case of the engine to see if it has spark. Just hook this up inline to the spark plug, crank the engine, and get immediate feedback that spark is present. This is great.
Review: Great item - Good quality, easy to work with, works great, bright light, like the longer boot for coil packs. Struggled with the shorter one in the beginning. I have the dreaded 5.4l 3 valve v8 F-150 and sparkplugs were just to start with....

## 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.

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0002STSC6 |
| Best Sellers Rank | #2,567 in Automotive ( See Top 100 in Automotive ) #7 in Spark Plug & Ignition Tools |
| Brand | Lisle |
| Color | Red |
| Customer Reviews | 4.7 4.7 out of 5 stars (6,724) |
| Date First Available | July 7, 2004 |
| Global Trade Identification Number | 00083045206101 |
| Is Discontinued By Manufacturer | No |
| Item Weight | 4.3 ounces |
| Item dimensions L x W x H | 10.5 x 5.75 x 1 inches |
| Item model number | 20610 |
| Manufacturer | Lisle |
| Manufacturer Part Number | 20610 |
| Measurement Type | Ohmmeter |
| Model | Lisle 20610 Inline Spark Tester |
| OEM Part Number | 20610 |
| Power Source | Hand Powered |
| Product Dimensions | 10.5 x 5.75 x 1 inches |
| Style | Inline Spark Tester |
| UPC | 083045206101 |

## Product Details

- **Brand:** Lisle
- **Color:** Red
- **Item Weight:** 0.27 Pounds
- **Power Source:** Hand Powered
- **Style:** Inline Spark Tester

## Images

![20610 Inline Spark Tester - Image 1](https://m.media-amazon.com/images/I/6146pi8z2WL.jpg)

## Available Options

This product comes in different **Style** options.

## 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

### ⭐⭐⭐⭐⭐ Why did I wait so long to buy one of these?
*by S***R on October 5, 2025*

This device saves so much time trying to determine if a small engine has spark. It is so much easier than pulling the spark plug and trying to prop it up against the case of the engine to see if it has spark. Just hook this up inline to the spark plug, crank the engine, and get immediate feedback that spark is present. This is great.

### ⭐⭐⭐⭐⭐ Great item
*by J***J on September 5, 2025*

Good quality, easy to work with, works great, bright light, like the longer boot for coil packs. Struggled with the shorter one in the beginning. I have the dreaded 5.4l 3 valve v8 F-150 and sparkplugs were just to start with....

### ⭐⭐⭐⭐⭐ Good buy
*by A***R on November 4, 2025*

Works very well

## Frequently Bought Together

- Lisle 20610 Inline Spark Tester, One Size, Factory
- Innova 3630 Remote Starter Switch
- 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 Egypt*
*Store origin: EG*
*Last updated: 2026-03-05*