These hand refractometers are handy, simple-to-use instruments for measuring solution concentrations. Typical applications include determining sugar concentration of food products and cosmetics, ratio of water to lubricant in the machine tool industry, and salt water concentration.
Readings are taken easily and accurately in only seconds. Each refractometer comes with a hard storage case. An optional soft carrying case is also available.
Made in China. Warranty: 5 years on 300000 series; 6 months on other models.

*Automatic Temperature Compensation frees the user from having to recalibrate in work environments with large temperature swings. The effective compensation range is 10-30°C (50-86°F).
†Calibrate with 60% Brix standard solution.
‡Calibrate with 79.7% Brix standard solution.