Feature: OOTDTY High quality and accurate testing results are guaranteed Equipped with Built-in ATC compensation Range (Automatic Temperature Compensation) from 10 to 30 to correct temperature discrepancies during use Easy to focus & calibrate and very convenient to use Durable and built to last long Comprehensive operations manual, pipette for easy calibration are provided for user's convenience and comfortability This Alcohol refractometer is designed for the measurement of distilled beverages (ethanol with water) like whiskey, brandy, fruit brandy, slivovitz, vodka, gin, tequila, Chinese alcohol, etc. It has a scale in the range of 0 - 80 % (VOL - alcohol volume percent). Specifications Measuring Range : V/V 0-80% Minimum Divisions : V/V 1% Accuracy : 1% Removing alcohol concentration test refractometer 0-80% alcohol liquor concentration meter, rice wine concentration test and used in the detection of liquor alcohol content, alcohol refractometer series (liquor) is specifically detect the concentration of ethanol in aqueous solution the most intuitive instrument, can rapid determination of alcohol (ethanol) percentage concentration. This model works for alcohol testing (to test the alcohol concentration in the alcohol solution, not the grape wines or the other fruit wines). Its unit is W/W (Weight/Weight), the refractometers working temperature is suggested at 20C (about 18C to 25C). Measure the alcohol content accurately in seconds! All you need to do is manufacture a distillate of the liquids to be measured, and then place the distilled sample on the prism. Specification: Color: Silver Material: Plastic Size: 15.9x2.8x3.3cm Quantity: 1Set Note: And due to the difference between different monitors, the picture may not reflect the actual color of the item. Thank you! Package Content 1 x Refractometer 1 x Pipette 1 x Cleaning cloth 1 x Carrying bag 1 x English Instruction manual