Extech RF20: Portable Salinity Refractometer (0 to 100ppt) with ATC

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.

• 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