Used in the chemistry, pharmacology, food and beverage, and starch industries to name a few, these dual scale, plain form hydrometers measure specific gravity / relative density (g/cm?) of liquids lighter and heavier than water in various ranges from 0.700 to 2.00, and Baume in various ranges from 10° to 70°, or choose the Universal model to span all ranges.<br><br><ul style="margin-top:0px; padding-top: 5px; padding-bottom: 5px;"><li> Lead free ballast and glass</li><li> Individually serialized</li><li> Temperature standardization: of 60°F (15°C)</li><li> Hand inspected by our U.S. quality team </li><li> Packaged with a multi-language (English, French, German, Italian, Portuguese, and Spanish) Statement of Accuracy indicating accuracy traceable to NIST Note : Hydrometers should be stored in a clean, dry, safe place, and should not be subjected to extreme temperatures.</li></ul>