Lab Digital Refractometer - Brix 0 to 88%Sper high precision Digital Lab Refractometers measure concentrations in brix, salinity, refractive index and clinical parameters with full scale accuracy of 0. 1% using CCD scanner (linear scanned array imaging) technology. Our refractometers are simple to use, calibrate to distilled water and requires a sample of only 0. 4 ml. They instantly display temperature in addition to multiple scales with the unit of measure indicated on the large LCD. The