Atago 2373 Master 10M 0 to 10% Brix Refractometer
Move your mouse over image or click to enlarge

The Atago 2373 MASTER-10M is a hand-held, portable refractometer with a Brix scale that measures in the 0.0 - 10.0% range, has automatic temperature compensation (ATC), and is housed in a metal body. A Brix refractometer measures the refractive index of a solution in a sample, converts it to sugar concentration in units of percent by weight (% Brix, also known as degrees Brix), and displays the results. Hand-held refractometers, also known as sugar meters, concentration meters, or Brix meters, are commonly used in the culinary, food and beverage, pharmaceutical, educational, geological, chemical, and ecological industries, and for water-testing applications.

This refractometer is housed in a durable, die-cast aluminum metal body for heat and organic solvent resistance. The 2373 MASTER-10M features manual temperature compensation. Calibration can be controlled and adjusted with an exposed calibration screw and an included specialized screwdriver, although other items can be used to unscrew the unit. However, the unit retains its water-resistance. A spoon-shaped tip allows for automatic sample distribution (ASD) across the prism and boundary line (also called measurement line) for accurate, smooth sampling with small portions. The outer shell grip is smooth and easy to clean, which reduces the possibility of food and sample entrapment, avoiding contamination and bacterial growth. The analog Brix scale features a bright, high-contrast display for clear visibility of the boundary and memory lines intersection. Samples are viewed through a monocular, focusable, cushioned eyepiece. The unit includes a protective plastic storage case with a foam cut-out insert to cushion the instrument.


Measurement scale range Brix 0.0 - 10.0 percent (ATC)
Minimum detection scale Brix 0.1 percent
Accuracy Brix + or - 0.2 percent at 10 to 30 degrees C
Resolution Brix + or - 0.1 percent
Sample volume 10μl or more
Illumination Ambient light; unit requires no additional power source
Dimensions 20.3 x 3.2 x 3.4 cm (H x W x D)
Weight 155g
Catalog Number 2373


*H is height, the vertical distance from the lowest to highest point; W is width, the horizontal distance from left to right; D is depth, the horizontal distance from front to back.