Measures 0-32% Brix AND 1.000-1.140 Wort/Must Specific Gravity.The Wort/Must SG Scale has be re-engineered to be the WORLD"s MOST ACCURATE WORT SPECIFIC GRAVITY SCALE! This unit was made by beer dorks, for beer dorks!Calibrate with Distilled Water (0.0% Brix/1.000 Wort SG)Solid construction - 50% heavier than the cheap toy units out there.Comes in a PLASTIC HARD CASE with a BREWfractometer Users Guide, Calibration Screwdriver, Wiping Cloth and Plastic Transfer Pipette! Not some cheesy soft case!The BREWfractometer is the professional Brewers Choice because this Refractometer helps you hit your target gravities!If you are wondering, "Why is the BREWfractometer so great!?". Let"s recap shall we... (1) It is made of heavy weight metal - at least 50% heavier than the cheaper units(2) 10 Warranty Against Manufacturer Defects! No one comes close to our quality!(3) It is the WORLDS MOST ACCURATE WORT SPECIFIC GRAVITY REFRACTOMETER! The BREWfractometerTM is the ONLY REFRACTOMETER in the world with such a distinction!(4) Engineered by beer/wine/spirit folks like you - except we know a ton about Refractometers!This Refractometer is MUCH better than the cheap units you find at AMAZON, major online home brew suppliers and your local home brew supply shops. Buy the right one in the beginning, instead of buying the inferior ones and having to replace it later... You"ll end up spending more in the end..."BREWfractometer" is a registered trademark and only magnum_media is authorized to sell it at Amazon.