This portable refractometer features solid-aluminum construction, a rubber-gripped body and automatic temperature compensation. It has a1 1/2" diameter and is 7" long.

It is used to measure percent (%) salinity. The refractometer has the following specifications:

Resolution: 0.2% Range: 0 - 28%

The refractometer was developed for the measurement of salt in sea water. The prism and lens feature a simple focus adjustment and just 2 or 3 drops of solution are enough for accurate readings.

Kit includes: 2 pipettes, calibration screwdriver, cotton cleaning cloth, vial of cleaning solution, hard plastic case and instructions.