Small Engine Tachometer, Digital Tachometer Tach Gauge Reset Function Equipped with Clip, Inductive Hour Meter for 2 Stroke 4 Stroke Small Engine for Cropper Generator Lawn Mower RV

Seems to work great, I did good repairing a few items around the garage this tachometer confirmed’ compact can put it in your watch pocket nearly!

I repair my own lawn equipment at home. So, I needed one of these in my tool box. Small, lightweight, very accurate, and easy to use. The screen is easy to read to identify your engine speed. Comes in the box already set for a twin engine, which was what I needed. Absolutely the right purchase for the money.

When compared to an official Stihl tachometer at a certified Stihl repair shop, this tachometer was roughly accurate for lower RPM’s (~2,500-3,000), but inaccurate for higher RPM’s (8,500-9,500). At the higher RPM’s the tach seemed to either cut the RPM’s in half, or show them as being 1,000-2,000 too low. This was during use on a 2-stroke Stihl KombiEngine, and with the option for 2-stroke being selected on the tachometer. It was also for both the induction and physical clamp modes of the tachometer. I liked the ease of use provided by the clamp and induction measurement. Had the device been accurate I would have kept it. The price at ~$16-17 would have been great for an accurate and dual mode tachometer. I didn’t test for RPM’s over 9,500, nor test it on other engines. Addendum: On further testing at home against a Hardline tachometer with the same KombiEngine, my suspicion that this tachometer was being affected by the KombiEngine “rev limiter” was confirmed. As both tachs started providing inaccurately low readings as the engine approached its max RPM of 9,500. It may be that they are semi-accurately reading the pulses to the spark plug, which with a rev limiter and engine running at max RPM would be less than the actual engine revolutions per minute. Based on this, the usefulness of the wired clamp that I can also use with the Hardline Tach (a similar clamp would cost $6-7 by itself), and that this tach was accurate enough in induction mode, I’ve decided to keep it and have cancelled my return. Seems it may come in handy as an induction tach, and as a secondary tach for RPM validation purposes. In that case I’d say it’s worth the $16-17. I have not tested it for RPM’s over 9,500. I minus one star for the instruction shortcomings and the lag in RPM reporting relative to the Stihl and Hardline tachs.

Works great. I like the fact that u only need to hold it by the plug.

Easy, reliable data

Will read inconsistantly. Hooked to a single cylinder lawnmower. No matter where I moved it the rpm fluctuations would change. Said idle rpms were 6000 rpms. I probably would be dead if that were so.

Why did you pick this product vs others?: I needed a small engine tach to set the idle on a Stihl blower. This did the job for a reasonable price. As expected, the instructions weren't great, but after a little experimentation, I got the settings where I needed them. It worked well enough to set the idle on my blower.

Worked on some things and not other is slow and doesn’t seem to be accurate. Ended up returning it.

Worked great

Fonction bien , mais la lecture prend un certain temps à stabilisé, pour une utilisation personnelle ca fait.

works perfectly to tune chainsaw great value

Does the job, sort of! The clip at the end of the "sensor" wire is too large to firmly grasp the spark plug wire. Gave inconsistent readings on 14hp motor. Good readings if unit sensor area is held directly again spark plug wire. Considering it a hundred dollars cheaper than a name brand unit doing the same thing, good value.

Perfect and descent orice!