Check the listing for details. Sper Scientific 300003 Sugar Refractometer 0-80%. Condition: Used. Listed at 110.00 USD. Features. Sugar Refractometer 0 ~ 80% covers all of the substances of the Sugar/Brix Refractometer 0-32% and Sugar Refractometer 28-62% as well as very high sugar content products such as jam marmalade and syrup. 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. Rubber coated hand grip and construction which insulate the test solution from inaccuracies caused by the user's body heat.. Covered eye piece and bright clearly defined scale with large easy-to-read measurements.. All the accessories for immediate use including calibration tools and solutions full instructions transfer pipettes and protective cases.. Dimension - 6.5 x 1.5 x 1.5 in.. Item Weight - 0.19 lbs.