Refractometer displays in either Brix or Refractive Index (RI). Reads RI at actual temperature, RI or Brix temperature corrected to 20°C. Change reading mode with the push of a button. Get a full reading on the 5-digit LCD screen, including temperature. Automatic power-off mode extends battery life—battery life indicator is displayed when unit is on. Digitally and automatically measures your sample in seconds. Handles aqueous, organic, transparent, translucent or opaque samples. Operates on two AAA batteries (included) that offer more than 10,000 readings. Nonslip rubber side grips enhance comfort. Neck lanyard makes Refractometer easy to carry.