«  Good tool that does the job »

This is a good tool that does its job ie "VAGUELY MEASURING VOLTAGE SKINS" Those who expected more or taking that for a miracle tool is wrong.

Let's be clear:
-So it takes and this was measuring tool
-Placing the pulling tool near 1 or by placing two fingers spacing between the tool and the circle
We squeezes her skin by applying a voltage equal to each tie by reading the value on the tool
We have honed ear if necessary

Or faster or longer than traditional tuning, except that most people believe that equal voltage on the meter gives a perfect tuning, what is wrong when the flexibility and deformation of one knows skin throughout his life.
More logically more correct setting is low unless the device is accurate. For eg kick drum I found the device useless.
Knowing all that we can approach the machine for what it really is.

Useful to have a solid base setting and close enough to be called identical preset each time, useful for identifying "the shallow draft." Useful to quickly check the voltage.

Here is a useful tool but not necessary when you know how to use it or wants to use the base.
I take 3 points due aberrant price.