Proof & Tralle Dual Scale Hydrometer:This hydrometer is designed to accurately measures percentage alcohol in distilled spirits, proof scale 0-200, tralle scale 0-100. Accurate Measurement:The alcohol hydrometer is intended for measuring pure alcoholic drinks (vodka, spirits, moonshine) Not intended for wine, liqueurs, or tinctures. Crystal Clear Scale:Our crystal clear fonts are so easy to read and the gradient ribbon on the product can help you know the brewing progress. Universal Application:an alcohol meter can be useful both in households and at work, e.g. at the bar when diluting alcohol for making drinks. Package Included:2*double scale alcoholemeter, Sturdy storage case(protect hydrometer from breakage)Adequate quantity and supporting products to facilitate your daily use.