Sodium Chloride Hydrometers measure saturation and concentration of sodium chloride.Calcium Chloride Hydrometers measure specific gravity and freezing point of calcium chloride.
0 to 26.5% Sodium Chloride (NaCl), % by Weight Hydrometer
0 to 100% Sodium Chloride (NaCl), % Saturation Hydrometer
1.000 to 1.280 Specific Gravity / +30 to -40°F Freezing Point Hydrometer
