hydrometer alcohol Hydrometer is 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: Handle with care Material GLASS Model Name/Number HYDROMETER-1.000-2.000 Shape NA Temperature Range 1.000 to 2.000 and 10 to 70 Degree Be Automation Type Manual Color White Warranty NA Minimum Order Quantity 1 Piece **this product Not Return policy ** Operating Video Demo video hydrometers