Milwaukee Refractometer

Salinity Rdfractometer with Automatic Temperature Compensation Range 0-100% Salinity, 1,000-1.070 SG

The Mr series refractometers are precision optical instruments used for measuring auarium water salinity. Simply place one drop of water on the prism and read the results on the scales immediately. They have adjustable focus, easy to read numbers for good resolution, and zero adjustment screw for calibration.
These refractometers have Automatic Temperature compensation feature and are suitable for application where the temperature of the samples vary.
Each refractometer comes in a hard protective carrying case and includes calibration screwdriver, pipette, and instructions.