1.Measure salt water or water salinity, ideal for Seawater Aquarium Tank, Market Marine and marine monitoring 2.Salinity measurement range: 0-100 PPT 3.Easy to use, place 2-3 drops of sample on main prism, close plate and look through eyepiece for brix reading 4.Versatile refractometer with automatic temperature compensation, calibration screw (Calibrate to “0”) ensures accurate measurement and focus adjustment ensures clear reading 5.Portable refractometer, rugged design, compact in size and lightweight, lined with plastic case, convenient to keep and carry
