Engine RPM
I just replaced my old mechanical tachometer on my Isuzu 4 cylinder marine diesel on my sailboat with an electrical one driven thru the alternator and Balmar MC 618 regulator. Following the instructions on the tach and the RPM app it all danced perfectly and accurately! Simple accurate!
Works Well - Works as Described
Was a little concerned when noticing most reviews are very old. Pleased to report it worked very well when setting the speed of my old two stroke Lawn Boy mower. As the author and other purchasers have noted, works best with a constant engine speed and no background noise. Also verified my Ranger’s idle speed with it’s tachometer, spot on.
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Great concept. Great execution. Great price!
The Tiny Tach tachometer I’ve been using in my small engine work wasn’t extremely expensive, but it’s finicky and difficult to use when I’m tuning something like a chainsaw.
This app, after a couple minutes glossing over the instructions, was almost intuitive to get to function. It will be really nice to be able to set this down and have both hands free to operate the throttle and adjust carburetor settings on equipment now. Large, easy to see display and controls plus other features I haven’t even gotten to will make my work SO much easier! Thanks guys, for all your hard work. I’m totally happy with the price!
This app, after a couple minutes glossing over the instructions, was almost intuitive to get to function. It will be really nice to be able to set this down and have both hands free to operate the throttle and adjust carburetor settings on equipment now. Large, easy to see display and controls plus other features I haven’t even gotten to will make my work SO much easier! Thanks guys, for all your hard work. I’m totally happy with the price!
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Frustrating
I just want my 9 dollars back. Sick of trying to get this to work.
Very good
Must have for small Eng repair shop to check quick for idle rpm. Works awesome. You have to set you cylinders and 2-4 strokes then it works like a charm. Highly recommended
Got my snowblower working
Was able to dial in my snowblower RPMs no problem. I do think the app should have the cycle/number of cylinders option right on the Home Screen, I think that would help out. Also, would be nice if it had good enough response times to react to transient surges, really it’s only useful for steady RPM values. But overall, did what I needed for much cheaper than a small engine tach.
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Smart, solid app, works every time
An indispensable shop tool
Works as advertised
The documentation explains exactly how this works, and what the limitations are. There are some big advantages too: low cost and no need to touch the engine.
I used this to tune my old rototiller engine. It took some experimentation on where to position my phone near the engine, but I was able to get a strong signal and confirm max RPM and idle RPM.
I used this to tune my old rototiller engine. It took some experimentation on where to position my phone near the engine, but I was able to get a strong signal and confirm max RPM and idle RPM.
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Pricey but works good.
This was a little more expensive that I would have liked but once I used it I would say it’s defiantly useful. Used it to check low and high speed of my lawnmowers and it’s right on. Just slide around the hint rpm as it’s running and it finds the speed right away. It’s also cool that you can also see the audio waveform. The app doesn’t look to fancy but as long as it keeps working with future iOS updates I’ll be happy.
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Excellent Tool
This app worked very well to help me set the idle on my Royal Enfield 500cc single cylinder motorcycle. It picked up the “thump” of the engine immediately thus allowing me to fine tune the engine’s RPM to specification. 100% pleased!
