Proof and Tralles Hydrometer

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This economy proof and tralles hydrometer is used to find the alcohol percentage of alcohol by volume (abv) in a completely dry or distilled liquor. It does this by measuring the d ensity of the liquid compared to that of alcohol; any residual sugar or other cause of change to the density will result in a false low reading. Hydrometer for testing alcohol levels in distilled spirits. Will only work in solutions of ethanol and water, will not read the alcohol levels of beer or wine.Reads alcohol percentage on scale of 0-100%, and Tralles scale (Proof) on a scale of 0-200. Show more