This DURAC® calcium chloride salometer is used for determining the percentage of saturation, specific gravity or freezing point of CaCl2. Salometer is individually serialized and features a metal ballast. Hydrometer includes a multi-language (English, French, German, Italian, Portuguese and Spanish) Statement of Accuracy indicating accuracy traceable to NIST and DKD/PTB. It is tested and calibrated in H-B Instrument's exclusive triple accredited/registered ISO/IEC 17025:2005, A2LA accredited laboratory against equipment whose calibration is traceable to NIST and DKD/PTB. Temperature of Standardization 60°F/60°F. Range: 1.000/1.280 Sp. Gr. And -40/30°F Freezing Point. Divisions: 0.2 Sp. Gr. And 5°F Freezing Point. Length: 305mm (12in). Accuracy: 0.2 Sp. Gr. And 5°F Freezing Point.