Hydrometer for Home Brew Alcohol Beer/Wine Making jar Free 

 A Hydrometer 28cm Clear Glass  Scale Hydrometers For Home Brew Alcohol Beer/Wine Makingis an instrument that measures the specific gravity (relative density) of liquids—the ratio of the density of the liquid to the density of water. Material: Glass Color: Clear Product Dimension (B x H): 15mm x 300 mm Care Instructions:

 scale three color / single color . working same .

 

Operating Video Demo video  hydrometers