Handheld Refractometer Sea Salt Salinity Meter 0–10% (available with or without box) Type:Without box unobtrusive look while the rectangular

unobtrusive look while the rectangular hatch ensures a precise fit for the bottle

easy-to-clean look

ensuring you can position

The flush-mount approach eliminates interference with hull flow and reduces snag risks during trailering or shallow-water launches

and boost fuel economy through steadier trim

Handheld Refractometer Sea Salt Salinity Meter 0–10% (available with or without box) Type:Without box unobtrusive look while the rectangularThe Optical Salinity Refractometer is a precision tool for measuring salt concentration and density in seawater, aquariums, brine solutions, and low sugar liquids. With an ATC feature, it delivers reliable readings without being affected by temperature changes. Ideal for aquarium hobbyists, mariculture breeding, laboratories, and food & beverage industries, this refractometer helps ensure marine life health, optimize fluid concentrations, and improve