HHTEC Winemaker Refractometer 0-190 Öchsle 0-44 Brix (sugar) 0-38 KMW Öchslemeter with ATC for measuring sugar content for making wines with instruction manual in German

["This is an essential tool for measuring grape musts for the production of premium wines. With this refractometer, you can not only easily see the quality of the grapes, but also determine the level of your wine!", "Three MEASURING RANGES: Brix (mas Sacch): 0-44%, Oechsle: 0-190 °Oe, KMW: 0-38°, Resolution: Brix (mas Sacch): 0.2, Oechsle: 2.0 °Oe, KMW: 0.5°", "Easy to use. Place 2, 3 drops of the sample on the main prism, close the plate and look through the viewing window to read the Brix value; CALIBRATION: Zero calibration with water at 20°C, Automatic temperature compensation between 10°C and 30°C (ATC)", "Precision Measurement: Sharp dividing line (blue-white), good readability (daylight visible), adjustable eyepiece for focus adjustment", "Calibration: Zero calibration with distilled water at 20 ° C, automatic temperature compensation between 10 ° C and 30 ° C (ATC)."]