Hydrometer used for measuring alcohol content of higher alcohol brews. Larger scale (with less precision) than a standard triple scale hydrometer so it will not work for beer. Reads alcohol percentage on scale of 0-100%, and “Tralle’s scale” (Proof) on a scale of 0-200.
Test jar not included: https://homebrewinparadise.com/product/hydrometer-test-jar/