It's a bit difficult to set the drumhead tension to the correct value because the pointer jumps quite a bit. I use it to adjust the tension of the mesh heads of electric drums. The pointer probably jumps like this because of the tiny plastic threads in the mesh heads. With a little practice, this doesn't seem to be a problem anymore. To set the exact value, it's important to zero the instrument on a hard, smooth surface, such as a mirror. It saves me a lot of time and you can quickly set the even tension. I recommend it to everyone. Quality product.