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

The media could not be loaded. Overall, these are super handy to have.They are quite durable and made of hard plastic. Super easy to use, just disconnect the coil and add the spark tester inline. The flashing of the bulb is bright and easy to see, and if the spark plug is still installed in the engine the engine will run.I'm really happy with these. I would come back for this brand if I ever needed more.

Definitely not the most high quality ignition testers in the world but can't beat them for the price. Just make sure you get spare bulbs

Does what it says

Helped diagnose small engine repair. Great price and works well.

Used it the day I got it does what it's supposed to

Does not work as expected. The spark is virtually not easy to see. It would be better if the bulb was a different color so it could be seen when flashing. A spark in a clear bulb is virtually not visible. Also, the bulb sits at an angle and does not look like it is touching the contact point.

I use for checking spark on mowers

I bought this to originally test a broken lawn mower that I have. I hooked it up and pulled the cord, and sure enough there was no spark. But being the untrusting soul that I am wanted to make sure that this little device actually functioned, so I hooked it up to a lawn mower that actually does work and sure enough it showed that there was no spark. This was a working lawn mower. There is spark. So I tested this little device with a multimeter and the light bulb is broken. Yeah, it was less than 10 bucks but I'm still pretty pissed off. I've got to waste a week in between getting this one and now returning it and then getting another one . Not from this company.