Dual scale hydrometer for measuring the relative density in heavy liquids. Loaded with iron shot to float upright Range: 1.000 to 2.000 x 0.010 11" long. 0.6" diameter. Includes sturdy, plastic protective case Designed for laboratory use, but can be used in homes and shops This hydrometer measures the specific gravity of heavy liquids. Loaded with iron shot to enable the device to float upright. Range: 1.000 - 2.000 x 0.010. This hydrometer is designed for laboratory use, but can be used in the home as well. Measures 11" long, and has a top diameter of 0.6. Baume 0 - 70°Be Includes protective case.