Spark Testers

Jessica Johnson
14 min readJun 10, 2024

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Welcome to our roundup of the top Spark Testers currently available in the market! Whether you’re a seasoned professional or a beginner, this article will guide you through the most impressive options out there. We’ll delve into features, benefits, and user experiences to help you make an informed decision. So sit back, relax, and let’s embark on this thrilling journey together.

The Top 10 Best Spark Testers

  1. Thexton Adjustable Ignition Spark Tester for Accurate Spark Gap Check — Efficiently test and measure spark strength with Thexton Adjustable Ignition Spark Tester, providing a reliable and efficient solution for no-start conditions.
  2. OriGlam Spark Plug Tester for Easy Diagnostic Testing — OriGlam Spark Plug Tester: Quick and easy coil-on plug ignition spark circuit tester, perfect for no-start conditions, with high visibility white lettering for easy readability.
  3. Lisle Inline Spark Tester: Quick Ignition System Diagnosis — The Lisle 20610 Inline Spark Testers provide a quick and easy solution to diagnose ignition system issues, with easy connection to spark plugs and compatible with straight and 90-degree boots, offering sturdiness and compatibility.
  4. Inline Oppama PET-4000 Spark Tester — The Echo PET4000EC Spark Tester is a genuine OEM Echo part with precision adjustments to accurately test spark firing voltages, enabling diagnostics for Echo and Shindaiwa shops.
  5. Adjustable Ignition Spark Tester for Various Engines — Test and adjust your ignition system’s spark gap with the versatile and easy-to-use Thexton Adjustable Ignition Spark Tester (404), featuring a gauge background for accurate measurement and a secure alligator clip.
  6. Adjustable Ignition Spark Tester for Vehicle Diagnostics — Trust the OEMTOOLS 25069 Adjustable Ignition Spark Tester to accurately diagnose ignition systems in automobiles and lawnmowers, providing reliable voltage peak readings from 0 to 40,000V.
  7. In-Line Spark Checker for Ignition System — Quickly identify ignition problems with the Pittsburgh Automotive 90° In-Line Spark Checker, esteemed by automotive experts for its swift and dependable operation.
  8. Universal Mower Spark Tester: Engine & Equipment Convenience — Stens 752–329 — Inline Spark Tester: Durable, compatible design for easy and efficient lawn mower maintenance.
  9. Lisle 20580 Inline Spark Tester: Coil On Plug Wire with Ignition Inspection — The Lisle 20580 Inline Spark Tester, equipped with a Coil On Plug Wire, provides effortless and user-friendly spark testing specifically for coil on plug systems. It boasts a dual-ended short wire that ensures effortless access and precise readings.
  10. Ram-pro Fool-Proof In-Line Spark Plug Tester — Ram-pro In-Line Spark Plug Engine Ignition Tester — Diagnose engine issues with ease and precision with this 6–12 volt fool-proof tester.

As an Amazon Affiliate I receive compensation from qualified purchases!

Reviews

Thexton Adjustable Ignition Spark Tester for Accurate Spark Gap Check

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I’ve been using Thexton Adjustable Ignition Spark Tester in my daily life to test the performance of various ignition systems. What stood out to me was its adjustable spark gap feature that allows for precise spark gap requirements ranging from 0 to 40,000 volts. This makes it an invaluable tool when working on different types of ignition systems.

The safety shield has been a noteworthy feature as well. It protects the user from any potential harm while using the tester. Although the grounding clamp is welded, I’ve had no issues so far.

One drawback I’ve noticed is that the housing and body seem to be made of cheaper plastic compared to earlier designs. Despite this, the spark tester still functions as described and provides accurate measurements, making it a must-have tool for anyone dealing with ignition systems.

OriGlam Spark Plug Tester for Easy Diagnostic Testing

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The OriGlam Spark Plug Tester offers a simple yet effective solution for diagnosing ignition system issues. Its adjustable ignition coil testing capabilities make it an ideal tool for automotive enthusiasts or professionals seeking a quick and convenient way to troubleshoot no-start conditions.

One of the standout features of this product is its ease of use. The device features high visibility white lettering, which makes reading the gap measurement a breeze. Additionally, the screw assembly adjusts the spark gap effortlessly, ensuring that accurate readings are always obtained.

Furthermore, the OriGlam Spark Plug Tester showcases impressive flexibility, allowing users to adjust the spark gap to their desired specifications. This versatility is a valuable asset, especially when working with diverse ignition systems.

While the product itself is compact, measuring only 7.48 x 3.15 x 1.18 inches, its functionality far exceeds its small size. In fact, its ability to determine the quality of the coil based on spark color and flash over distance has earned it a reputation as a great value and a more efficient diagnostic tool.

In terms of customer satisfaction, the OriGlam Spark Plug Tester has received glowing reviews. Users praise its convenience, ease of use, and effectiveness in diagnosing ignition system issues. Its five-star rating is a testament to the device’s high performance and outstanding value.

Lisle Inline Spark Tester: Quick Ignition System Diagnosis

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I’ve used the Lisle inline spark testers in various situations, and they have never disappointed me. The double-ended design allows for greater flexibility, fitting both straight and 90-degree boots. It’s an invaluable tool when diagnosing ignition problems; the mirror image of the ignition spark helps identify the root cause quickly.

The only issue I have experienced is the probe tip being too short for some spark plugs. Overall, this product is sturdy, easy to use, and compatible with a wide range of engines.

It’s a valuable addition to any toolbox, and its durability and versatility make it a must-have for those working with small engines.

Inline Oppama PET-4000 Spark Tester

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As a product reviewer, I had the chance to use the Echo PET4000EC Spark Tester, and let me tell you, it was quite an experience! First thing that stood out to me was its ease of use. The design of this tester is quite user-friendly and intuitive, making it simple even for beginners to operate.

One of the features I found particularly helpful was the adjustable gap. It allowed me to test for spark at the right firing voltages, which was a game-changer when diagnosing issues in various machinery. The tester could check for spark between 2KV and 25KV with such ease, it felt like having that extra pair of hands needed for such tricky situations!

However, I noticed that while the spark checker worked perfectly when the machine was running, it had some difficulties checking for spark when it was not running. This could potentially be a drawback for some users.

But overall, my experience with the Echo PET4000EC Spark Tester was a positive one. The product’s build quality felt solid and durable, making me feel like this tester could last me a lifetime. The fact that it’s specifically made for Echo and Shindaiwa shops also adds credibility to the product and its manufacturing process.

To sum up, the Echo PET4000EC Spark Tester is a reliable tool for professionals and enthusiasts alike. Its adjustable gap feature allows for accurate and precise testing, and its durability ensures years of reliable service. Despite the minor inconsistency in testing when the machine isn’t running, overall, this spark tester is a solid choice for anyone who needs a reliable tool for their work.

Adjustable Ignition Spark Tester for Various Engines

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Thexton’s Adjustable Ignition Spark Tester (404) is a versatile tool that works seamlessly with ignition systems ranging from high-energy electronics to small engines. This handy device tests for both no start conditions and spark strength, making it a reliable and efficient solution for diagnosing issues.

One of the most notable features of this spark tester is its adjustable gap, which effortlessly caters to spark gap requirements spanning from 0 to an impressive 40,000 volts. This flexibility ensures accurate testing across a wide range of applications. Additionally, the gauge background enhances the visibility of the spark, making it simpler to measure the spark strength accurately.

Equipped with an alligator clip, the Adjustable Ignition Spark Tester fastens securely to the ground, ensuring a stable connection and optimal results. The screw assembly allows for easy and quick adjustments to the spark gap, while the safety shield adds an extra layer of protection. Despite its simple design, this nifty tool packs a powerful punch and proves to be a valuable addition to any tool collection.

Adjustable Ignition Spark Tester for Vehicle Diagnostics

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The OEMTOOLS 25069 Adjustable Ignition Spark Tester is a handy tool for testing the ignition systems of various machines, from automobiles to lawnmowers. This versatile tester features the ability to adjust to check systems with voltage ranging from 0 to 40,000V and a built-in scale to approximate voltage peaks. It measures just 0.4" x 0.2" x 0.2" in size, making it easy to store and transport.

However, some users have noted issues with the markings, connector, and insulator, affecting the overall user experience. With a rating of 3.0 and a relatively low number of reviews, it appears that the OEMTOOLS 25069 Adjustable Ignition Spark Tester may leave some users wanting more.

In-Line Spark Checker for Ignition System

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This spark tester is an essential tool for diagnosing any ignition system issues. The neon light makes it easy to see the spark even in bright daylight and its quick connection process means you won’t waste time trying to figure out how it works. While some reviewers mention a potential issue with the connector slipping out of the boot, it can be easily remedied by ensuring proper alignment.

All in all, this spark tester packs a punch in its affordable price range and is worth adding to any mechanic’s toolbox.

Universal Mower Spark Tester: Engine & Equipment Convenience

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I recently tried the Stens 752–329 Inline Spark Tester in my daily life, and I must say, it’s a handy little tool that has made my outdoor living experience so much better. As someone who owns multiple gas-powered outdoor machines, like lawn mowers and weed trimmers, it’s crucial to be able to quickly diagnose and fix potential issues on the go.

One of the things that stood out to me is the universal compatibility this spark tester has with various models and brands of lawn mowers. This feature really came in handy, as I didn’t have to swap out any pieces or buy additional tools just to use it with my mowers. Additionally, I appreciated the robust construction of the Stens 752–329, as it gave me the confidence that it would hold up over time.

However, there were a few negatives I encountered during my experience. Firstly, I noticed that the quality of the product isn’t as high as one would expect given its affordable price point. I had some parts that came loose during my first use, which made me worry about the tool’s durability.

Another minor inconvenience was the lack of clear instructions for properly using the product. I had to figure things out on my own, and I’m sure other users might feel the same way.

Overall, despite the few drawbacks, I still think the Stens 752–329 Inline Spark Tester is a valuable addition to any outdoor enthusiast’s tool kit. It saves time and hassle when troubleshooting gas-powered machines, and its universal compatibility makes it a must-have for those who own or work with multiple lawn mower models.

Lisle 20580 Inline Spark Tester: Coil On Plug Wire with Ignition Inspection

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I recently came across the Lisle 20580 Inline Spark Tester and to be honest, it’s a little tool that could be a lifesaver if you’ve ever suspected an engine misfire. After connecting the tool between the spark plug and the plug wire, I flipped on the engine and the tool flashed a mirror image of the ignition spark like a pro — really quick and easy, proving that the engine was working in optimal condition.

One of the standout features of this product is the short wire double-ended design. With it, I could offer a straight boot or a 90-degree boot on one tool. Talk about convenience, right? The additional 7" extension plug wire comes in handy for those hard-to-reach coil on plugs that are recessed.

While I can’t ignore the fact that it’s a bit pricey as compared to a lot of other options out there, the reliability, the smooth operation, and the fact that it works every time make it more than worth it in my opinion. Overall, I’d say the Lisle 20580 Inline Spark Tester is an essential tool for any engine enthusiast.

Ram-pro Fool-Proof In-Line Spark Plug Tester

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As someone who has used the Ram-Pro In-Line Spark Plug Engine Ignition Tester in their daily life, I can confidently say it’s a game-changer for anyone dealing with ignition or engine issues. The straightforward test methods make it easy to use, and the tester’s ability to light up and buzz to indicate the testing result is truly handy.

One of the most helpful features for me was the brightness of the light, which accurately represented the quantity of the spark. However, I noticed that the pulses might not always be bright and consistent, which could occasionally lead to some misinterpretation of the test results.

Overall, the Ram-Pro In-Line Spark Plug Engine Ignition Tester has been a reliable and user-friendly tool in my garage. Its fool-proof design and quick diagnosis of issues make it a great addition to any automotive toolkit.

Buyer’s Guide

When it comes to ensuring the quality and safety of your engine, a spark tester can be an indispensable tool. However, choosing the right one can be a bit daunting. In this buyer’s guide, we’ll provide you with valuable information and general advice to help you make an informed decision when purchasing a spark tester.

Important Features

To make the best choice for your needs, consider the following features when looking for a spark tester:

  1. Accuracy, as it helps in identifying faults quickly and accurately. 2) User-friendliness, which makes the device easy to operate and read. 3) Portability, a key factor if you frequently work on different vehicles or locations.

Considerations

Before making a purchase, consider these aspects of your situation:

  1. Your budget — more expensive models often provide better accuracy, reliability, and additional features. 2) Types of vehicles you work on — some models are specifically designed for specific vehicle types or engine configurations. 3) Your experience level — it may be more beneficial to choose a tester with more features or greater accuracy if you’re an experienced professional.

General Advice

To get the most out of your spark tester, remember these tips:

  1. Always follow the manufacturer’s guidelines and safety precautions. 2) Keep your tester clean and properly maintained to ensure accurate readings. 3) Regularly calibrate your device to ensure consistent accuracy over time. Lastly, don’t forget to share your experiences and ask for advice from other professionals in the field.

A spark tester is an essential tool for any automotive professional, offering valuable insights into engine performance and potential issues. By focusing on the important features and considerations outlined in this guide, you’ll be well-equipped to make a wise purchase that suits your needs and budget.

FAQ

What is a Spark Tester?

A Spark Tester, also known as a Gas Tester or Combustion Analyzer, is a device used to analyze the combustion efficiency and gas composition of a heating appliance, such as a furnace or fireplace. It helps in detecting defects in the appliance’s combustion process and ensures safe and efficient operation.

The device works by drawing a small sample of the gas produced during combustion and analyzing its components, such as carbon monoxide, carbon dioxide, and oxygen. This information helps identify any potential issues or imbalances in the appliance’s combustion process and allows for necessary adjustments to be made.

What are the benefits of using a Spark Tester?

Utilizing a Spark Tester offers several advantages, including improved safety, efficiency, and comfort. By analyzing the combustion process, potential issues such as incomplete combustion, unsafe levels of carbon monoxide, and gas leaks can be identified and addressed. This leads to a more efficient and cleaner burning process, reducing energy consumption and saving money on heating costs.

Additionally, regularly using a Spark Tester can prevent significant safety hazards, such as carbon monoxide poisoning, gas leaks, and increased risk of fire. By maintaining the appliance and ensuring optimal combustion efficiency, a Spark Tester helps create a comfortable and safe environment for the home’s occupants.

How does a Spark Tester work?

A Spark Tester operates by drawing a small sample of the gas produced during combustion and analyzing its components. The device uses a special flame to ignite the gas sample and a highly sensitive detector to measure the combustion products produced. This process allows the analyzer to determine the amount of carbon monoxide, carbon dioxide, and oxygen present in the gas.

The results are then displayed on a digital or analog dial, providing the user with crucial information on the appliance’s combustion efficiency. Based on these findings, any necessary adjustments can be made to the appliance to ensure optimal performance and safety. The process is typically simple and user-friendly, requiring minimal training to operate effectively.

What types of heating appliances can benefit from using a Spark Tester?

A wide range of heating appliances can benefit from using a Spark Tester, including furnaces, fireplaces, boilers, and water heaters. These devices are all subject to the combustion process and can, therefore, develop issues related to incomplete combustion, unsafe gas levels, or gas leaks. By regularly using a Spark Tester, these issues can be identified and addressed, ensuring that the heating appliance functions efficiently, safely, and with optimal comfort.

Moreover, Spark Testers are not limited to residential applications and can also be used in commercial and industrial settings, where large heating systems are employed. By monitoring the combustion process in such applications, potential issues can be identified early on, preventing costly repairs, minimizing downtime, and increasing overall efficiency.

Are Spark Testers easy to use?

Yes, Spark Testers are relatively easy to use and require minimal training. Most devices come with clear instructions and are designed with user-friendly interfaces. To use a Spark Tester, one typically needs to follow these steps: connect the device to the heating appliance, turn it on, draw a sample of the gas, and analyze the combustion products. The results are then displayed on a digital or analog dial.

Additionally, many Spark Testers come with built-in alarms that sound if unsafe levels of carbon monoxide or gas leaks are detected. This ensures that even inexperienced users can quickly identify and address any issues related to the combustion process. With proper use and regular maintenance, Spark Testers can help ensure the safe and efficient operation of heating appliances.

How often should a Spark Tester be used?

The frequency at which a Spark Tester should be used depends on the specific heating appliance, its age, and the environment in which it operates. As a general rule, it is recommended that a Spark Tester be used at least once a year, or more frequently if there are concerns about the appliance’s combustion efficiency or safety. Regular testing helps identify issues early on, preventing potential hazards and ensuring the appliance continues to function optimally.

Moreover, factors such as the type of gas utilized, the appliance’s location, and the home’s ventilation system can influence the recommended frequency of Spark Tester usage. It is always best to consult the device’s user manual or a professional technician for specific recommendations based on your heating appliance and situation.

As an Amazon Affiliate I receive compensation from qualified purchases!

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