SPER Scientific Refractometer, +/-1% Accuracy, 7 x 1-1/2in

SPER Scientific Refractometer, +/-1% Accuracy, 1% Resolution, 7 x 1-1/2 in, Additional Information: 0 to 50%, 50 to 80% Brix Rating. Its wide range also makes this refractometer a good choice for the testing of any solution with an unknown sugar content. Comes with a hard carrying case and calibration tool. Place a drop or two of a sample on the prism and read the results. SPER Scientific portable refractometers work in ambient light with no battery or other power source necessary. A refractometer measures the extent to which light is bent (refracted) through a liquid sample. They are commonly used to help identify or confirm the identity of a sample, assess the purity of a sample or determine the concentration of a solute in a solution. They can be used in labs, on production lines, in the field or anywhere. Simply place a drop or two of a sample on the prism and read the results immediately. With reasonable care, their reliability, precision and optical performance will last forever - SPER