OTC 6589 Electronic Ignition Spark Tester

Good but not great, September 13, 2014
This product operates very well, the one drawback is the clip is not very sturdy other than that it does what it is supposed to do.

Inexpensive and effective, September 11, 2014
Works as described. No more screwdriver spark checks.

I love it, September 6, 2014
Great product

A good foundation., September 6, 2014
Main body works well. The clip is another story. It will disassemble while installing. Install an 8 gauge wire approximately 2 feet long with a quality clamp and it would be a five star product.

Good tester., September 6, 2014
Excellent quality tester. Don't drop it, it could break. Much better than holding a plug to the housing of the engine.

I like it, September 5, 2014
Haven't used it yet, but I soon will. Appears to be made well

Five Stars, August 25, 2014
Works great. Helps to isolate a bad coil pack quickly!

Get this one, August 24, 2014
With the design change to the KD Tools 2756D, this is the now the tester to get.

Two Stars, August 13, 2014
Alligator clip fell apart first time I used it, cheaply made.

Five Stars, August 13, 2014
good tool