Alcometer 0 - 100%
This should only be used in pure, distilled spirits when you want to determine the volume % or proof of the spirit. It is calibrated to the density of pure ethanol. Simply float it in your spirit, and where the line crosses, there’s your % alcohol. Because water is thicker than alcohol, more water means that the liquid is thicker and the alcoholmeter can’t sink as deep.
Remember that this will only work on a pure, distilled spirit that contains no sugar or glycerin.
Best used with a glass trial jar.