Ade Advanced Optics High Measuring Range Honey Tester 58-90 Percentage Homebrew Hydrometer Refractometer Brix, Aluminum, Black Ade Advanced Optics Dual range refractometer measures the Brix and Specific Gravity of your Wort or wine Measures Brix: 0-32% and Specific Gravity:1.000-1.120 Features ATC (Automatic Temperature Compensation) for accurate readings A refractometer is easier and more accurate than a hydrometer for measuring sugars Aircraft aluminum body, premium optical lens, Rubber eye guard