nice tool, comes in handy
Very handy lil took to check for spark. Works good. Read more

BLAU GRUN
In Stock
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| Brand | BLAU GRUN |
|---|---|
| Power Source | Corded Electric |
| Color | White/1PCS |
| Item Weight | 0.06 Kilograms |
| Specification Met | CE, ETL, RoHS, UL |





Product video 1
Customers say
Customers find the spark plug tester works well with small engines and appreciate its solid construction and cost-effectiveness.
Very handy lil took to check for spark. Works good. Read more
Used it to diagnose a chainsaw. So far, it works as intended. Read more
Tested it on lawn mower plug. Works! Hard to see in direct sunlight. Best to do in shade. Read more
Did the job Read more
I bought this for my husband and he said it worked perfectly. Super straightforward to use and helped him quickly figure out which plug was misfiring. Nice solid little tool that does exactly what it’s supposed to. Read more
Works with small engines!. NOT REALLY! I bought this to troubleshoot a single cylinder pull start generator. I could not get it to work. After trying it on other small engines I concluded that it works on small ELECTRIC START engines. Pull start engines will not light the tester. For all my electric start engines it worked well. Read more
Worked GREAT Read more
This inline spark plug tester is a total game-changer for diagnosing ignition problems. It’s simple to use—just plug it in between the spark plug and the ignition wire, and you can instantly see if the spark is firing correctly. The visual indicator is clear and easy to read, making troubleshooting fast and stress-free. It’s a great tool to have, whether you’re a professional mechanic or a DIYer working on small engines, cars, or lawn equipment. For the price and functionality, you really can’t beat it. Highly recommend! Read more
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