3 In 1 hand held Grape Alcohol Refractometer has three scales(Brix, Baume and W25V/V scales) is mainly designed to test the sugar content in original grape juice and alcohol-content by volume of the grape wine made from the fermented grape juice and baume in grapes concentration. It is a metal device that provides you with fast accurate results.You can measure the brix baume alcohol content accurately in seconds That helps the manufacturer to decide the best time to manufacture the grape wine. Its physical is: if the measured degree of alcohol of grape wine is 1%VOL, it means the corresponding approximate value of sugar content of grape original juice per liter is 16.83g.Specifications:Measuring Range: 0-25%Vol , 0-40%Brix;Baume:0-22BaumeMinimum Division: 0.2%Vol , 0.2%Brix;0.2BaumeAccuracy: 0.2%Vol , 0.2%Brix(atc) Temperature Compensation Range: 10C 30CLength : 170mmWeight: 230gHeavy duty (Durable Aluminum)Durable and built to last longHeavy-duty with aluminum constructionEasy to focus and calibrateAccurate testing results guaranteedMade with the highest and finest quality of aluminum rubber that makes it lightweightCushioned with soft comfortable non-slip rubberExtremely easy-to-useAccessories included:Pipette + 1pc pipettes more for free * Operations manual * Mini-screw driver * Soft protective carrying caseMeasuring Range: 0-25%Vol , 0-40%Brix;Baume:0-22Baume