Check the listing for details. MILWAUKEE INSTRUMENTS MA883 Digital Refractometer for Wine and Grape Products. Color: Green, Condition: New. Listed at 449.99 USD. MA883 Digital Refractometer for Wine and Grape Product Measurements MA883 measures Baum.TheMA883is optical instrument that is based on the measurement of the refractive index of a solution. The measurement of refractive index is simple and quick and provides the vintner an accepted method for sugar content analysis. Samples are measured after a simple user calibration with deionized or distilled water. Within seconds the instrument measures the refractive index of the grape. This digital refractometer eliminates the uncertainty associated with mechanical refractometers and is easily portable for measurements in the field. The instrument utilizes internationally recognized references for unit conversion and temperature compensation. Temperature (in C or F) is displayed simultaneously with the measurement on the large dual level display along with icons for Low Power and other helpful message codes. Key features include: Dual-level LCD Automatic Temperature Compensation (ATC) Easy setup and storage Battery operation with Low Power indicator Automatically turns off after 3 minutes of non-use Single-point calibration with distilled or deionized water Quick, precise results readings are displayed in approximately 1.5 seconds Small sample size as small as 2 metric drops Range: 0 to 28 Baum | 0 to 80C / 32 to 176F Resolution: 0.1 Baum | 0.1C / 0.1F Accuracy: 0.1 Baum | 0.3C / 0.5F Light Source: Yellow LED Measurement Time: Approximately 1.5 seconds Minimum Sample: Volume 100 L or 2 metrics drops (cover prism totally) Sample Cell: Stainless steel ring and flint glass prism Temperature Compensation: Automatic between 10 and 40C / 50 to 104F Enclosure rating: IP65 Case Material: ABS Battery Type: 1 x 9V AA (included) Battery Life: 5000 hours reading with auto-shut off after 3 minutes of non-use Dimensions Meter: 7.6 x 4.0 x 2.64 inches (192 x 102 x 67 mm) Weight Meter: .93 lbs. (0.42 kg) Dimensions Package: 11 x 6.8 x 4.60 inches (268 x 172 x 118 mm) Weight Packaged: 1.46 lbs. (0.66 kg)