The Reichert r²mini hand-held digital refractometer is a tough little instrument that raises the bar in performance and value. It weighs only 100g and fits perfectly in your hand for ease of use. Digitally and automatically measure your sample in seconds and display your results in RI, Brix or full reading. You only need 2 AAA batteries to keep this little workhorse running for 10,000 + readings. Its durable housing along with its IP65 dust-proof/water resistance rating makes the r²mini the instrument to take with you for testing in virtually any environment. Typical applications include % Brix/sweetener and solids concentration/purity RI in beverages, food, agriculture, pharmaceutical and cosmetics production.