The Milwaukee MA871 is an optical instrument that employs the measurement of the refractive index to determine the % Brix of sugar in aqueous solutions, fruit juices, and industrial fluids (such as coolants). It is a simple, fast, and reliable alternative to mechanical refractometers.

Key Features:

• Automatic Temperature Compensation (ATC): Ensures accurate readings between 10°C and 40°C.

• Dual-Level LCD: Displays both the Brix measurement and temperature simultaneously.

• Easy Calibration: One-point calibration using distilled or deionized water.

• Portability: Lightweight (420g) and compact for mobile field measurements.

• Durability: Built with impact-resistant ABS plastic and rated IP65 for water resistance.

Technical Specifications:

• Range: 0 to 85% Brix; 0 to 80°C (32 to 175°F).

• Resolution: 0.1% Brix; 0.1°C / 0.1°F.

• Accuracy: ±0.2% Brix; ±0.3°C / ±0.5°F.

• Light Source: Yellow LED.

• Minimum Sample Volume: 100 µL (must fully cover the prism).

• Battery Life: Approx. 5,000 measurements (9V battery included).

• Price: 210 u.e. (USD equivalent).

Understanding Brix: Brix represents the weight percentage of sucrose in a solution. In fruit juices, it serves as a direct indicator of fruit ripeness and quality. High-quality grapes grown in fertile soil typically reach a Brix value of around 24, while lower-quality produce may only reach 8.