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Old 01-30-2017 | 01:51 PM
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howardcano
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Originally Posted by Lunchie
how do you find it works? fairly accurate? i like this idea as i dont want to spend $100 to measure a $40 motor
The tach shown is quite accurate, since it is crystal-controlled. If I recall correctly, the resolution is 30 RPM. The RPM reading is much more stable than my GForce motor analyzer; it really bounces around!

The tach in the link (which I also own) specifies the accuracy at ±(0.05 % + 1 digit) with 1 RPM resolution.
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