Extech RF20 Portable Salinity Refractometer (0 To 100ppt) With ATC

Refractometer
Measures the concentration of dissolved salt in fluids. Compact size, easy to operate. Automatic Temperature Compensation (ATC) from 10 to 30°C. Comes with case, calibration screwdriver, plastic pipette calibration solution, and user guide.

Key features

Compact size, easy to operate
Automatic Temperature Compensation (ATC) from 10 to 30°C
Provides accurate and repeatable measurements on easy to read scale
Requires only 2 or 3 drops of solution
The prism and lens with a simple focus adjustment
Complete with case, calibration screwdriver, plastic pipette and calibration solution