Universal hydrometer
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Graduated for specific gravity and both Baume scales. The specific gravity scale runs from 0.700 to 2.000 in 0.01 increments. For liquids lighter than water, the Baume scale runs from 10° to 70°Be. For liquids denser than water, the Baume scale runs from 0 to -70°Be. Overall length is 38 cm.