Inline Spark Plug Tester, Plug-in Engine Ignition Tester, Car Exterior Accessories, Automobile, Lawn Mower,Engine Verification-Armature Diagnostic Test Tool

Works as expected, used to diagnose spark issue on an older jeep. Snapped right in and worked good.

EXCELLENT PRODUCTS for the price. As soon as I got it, I put it to use checking out the spark of a Hedge trimmer and it started worked great. 10 stars to these guys....

Good quality and works well. This is an excellent diagnostic tool at Little cost. Why didn't I buy this years ago. It saved me a bunch of time diagnosing a riding lawnmower yesterday.

The SINGARO Inline Spark Plug Tester is a straightforward diagnostic tool that lives up to its description. In essence, it's a plug-and-play tester designed for quick and easy spark plug diagnosis. Its simplicity is its greatest strength. If you're familiar with connecting a spark plug wire, you'll be able to use this tool without any learning curve.The tester is about the size of a mid-sized screwdriver, making it relatively easy to handle. It feels robust and well-built, suggesting it should withstand regular use and last a reasonable amount of time. The secure connection it provides during testing is also a plus, preventing accidental disconnections during operation.However, its design isn't without limitations. The main drawback is the bulky testing light area. This can make it difficult, if not impossible, to use in tight engine compartments. For applications where spark plugs are easily accessible, like on many lawnmowers, this isn't an issue.But for more confined spaces, such as those found in some chainsaws, other, more compact testers would be a better choice. Additionally, working on cars with tight engine spaces could pose an issue.Pros:• Very easy to use, virtually foolproof.• Straightforward testing.• Solid and durable construction.• Secure connection during testing.• Well-suited for lawnmowers and similar easily accessible engines.Cons:• Bulky testing light area limits use in tight spaces.• Not ideal for chainsaws or engines with difficult-to-reach spark plugs.Overall:• The SINGARO Inline Spark Plug Tester is a good choice for those needing a simple, reliable tool for testing spark plugs in easily accessible engines like those found in lawnmowers. While its bulk prevents it from being a universal solution, its ease of use and sturdy construction make it a worthwhile addition to your tool collection, if you primarily work on engines with ample space around the spark plugs. Be mindful of space constraints before purchasing.

Worked exactly as I had hoped. Easy to put in use and shows you exactly what you need to see to determine if spark plug is good. Used this to test the spark on an Echo leaf blower.

I bought this so that I could test my ignition coil on my riding mower. Basically it doesn’t work (the lights don’t come on with a working coil. I tested it on two different lawnmowers, one of which starts fine). If that is the use you need it for, it wont work. Once the engine is running, the lights blinks just fine. It might work on an automobile coil, but I didn’t try that. I’m returning it. It was just as easy to watch the spark plug gap while grounding the plug against the engine block.

I used this to find a bad plug wire in my old SBC engine and it worked.

The test light arrive well packaged in factory display sleeve. Unfortunately when I went to use it, I discovered that it would not light up! Upon further inspection, I noticed that the light bulb itself was cracked inside the test unit! From the way this unit was packaged and built. I would say that that light was cracked from the factory indicating very poor quality control on this item! When I went to return it, Amazon gave me fits because all U.P.S Shipping sites have been closed in my area, Thirty minute drive, minimum across mountain roads to get to the nearest one! The only offers that Amazon had was 2. Ship it back at my cost for almost eight dollars on a part that only cost me seven and a half dollars to start with! That made no sense, they finally compd It and refunded my money! Poor experience all the way around!