We are pleased to announce our NEW HI98319 waterproof salinity and temperature tester! Waterproof and floats! Includes 4x of the Salinity Calibration Fluid Packets.

It is designed for testing the concentration of salt water and brine and used for quality control in research and clinical laboratories and marine industry. Its scale provides a direct reading of the...

This refractometer does not come with a case or battery. The new Milwaukee MA887 Seawater Digital Refractometer encompasses 3 different types of user selected scales for the measurement of seawater...

Lighted Refractometer uniquely design incorporates LED technology to illuminate the scale without the need of ambient light. It is designed for testing the concentration of salt water and brine and...

Main features of Red Sea’s Seawater Refractometer include:Directly reads the absolutesalinity ofseawaterat25°C/77 0F ( No need for seawater or temperature compensation factors)Specifically designed...