Magnetic Counter - RPM Meter

Would anybody tell me why it doesn't work on my moto g4 plus because all it shows is blank screen

Wonderful app; works flawlessly. It does require adjustment to set the correct magnet detection threshold, but this is easily done, and once done it works wonderfully. The app has been updated to display to the nearest tenth of an RPM, making it more precise for measuring turntable speed accuracy, where you're looking for 33.3 (or 45.0) RPM.

Did nothing. Said free up a large amount of space to install. So I removed a working app to install this waste of time.

Once I understood that the revolution counter works when the gauss range is adjusted, it works like a charm for my coil winder

Can u make adjustable sensetivity. And hope it works with metal. Cuz only 1u or 2 are the effect from metal

It would be great if it had a turn counter, I need that for counting turns while winding a coil.

Measures accurate. Sensitivity adjustment is required. but not mentioned here. Once discovered I got good results.

Find a way to use camera or no magnet and if pay a lot for it

Please make it easy and explain your product Regards

I quickly needed exactly this in industry, worked perfectly, thanks!

Good

Work

Mahboob Alam

Good

Works with permanent magnet not sensitive enough for coil magnetic fields.

Just needed to count a reps on the coil and this little app is just perfect for job. Thank you!

If you need a magnetic counter this app is perfect.

Nice one

Amazing

Edited Sept 19 '15: 5 solid stars, and some more. A beta version has now an averaged RPM speed over 10 sec. Which in case of a high-er- RPM speed gives you an even more accurate result, especially in the case of a single piston gas engine. This is by far the most accurate App of all the RPM counters. For high RPMs, please use caution with the magnet and ensure that the magnet is properly secured. Original rerview: 4.8 Stars Extremely accurate and much better than any free apps to count RPMs, including stroboscopic or pseudo RPM counter. I used it to “fine tune" the RPM's on idle and max speed of a snowblower engine. it worked like a charm. Thanks a million! The only thing missing in this app is an "averaged RPM" over a short period of time, i.e 10,20 or 30 seconds and /or a graph. When tuning the carburetor, the engine will have slight variations, so, as the App reads the instant RPM, the RPMs jumps a bit, especially at high-er- rpm. Having an averaged speed/RPMs over short period of time would make that app well above 5 stars. Big thank you to the dev.

Was looking to count rpms, and there was literally an app for that.

For someone who works on obsolete mechanical and electro mechanical equipment this is a dream app

Not working

Nice app but would be nice if it could detect a N-S magnetic change e.g. a spinning magnet. At the the moment it detects total magnitude only. Then I'll give you 5 stars

Have used it to measure rpm on a few things. Even a stove fan with a magnet taped on a blade.

It works great!