Premium Salinity Refractometer

Largest and sharpest scale display available. Calibration ring for simplified calibration. This refractometer features a magnified scale for better visual accuracy. Other features include solid aluminum construction, a rubber gripped body and temperature compensation between 10 and 30°C (50 to 86°F). To calibrate, simply loosen the handset screw, place a few drops of water on the prism, turn the calibration ring until the shadow line is at zero and secure the set screw, that’s it! It reads specific gravity (1.000 to 1.070) and salinity in parts per thousand (0 to 100 in 1 ppt increments). Refractometer includes a black vinyl zip case, transfer pipette and cleaning cloth. This is one of the highest quality refractometers we have found on the market. Measures 1.5” dia. x 7” l (4 x 18 cm), weighs 0.6 lb (285 g).