Salinity Refractometer, Salinity Measurement Tool for Seawater Aquarium Tank, Marine Market, Dual Scale (1.0-1.070 [...]

1.Measure salt water or water salinity, ideal for Seawater Aquarium Tank, Market Marine and marine monitoring 2.Salinity measurement range: 0-100 PPT with 1ppt resolution; Salinity Proportion(D 20/20)(D 20/20): 1.000~1.070 with 0.001 resolution 3.Easy to use, place 2-3 drops of sample on the main prism, close the plate and look through the eyepiece for brix reading 4.Versatile refractometer with automatic temperature compensation (10~30), calibration screw (Calibrate to "0") ensures accurate measurement and focus adjustment ensures clear reading < p>5.Portable Refractometer, sturdy design, compact in size and lightweight, lined with plastic case, convenient to keep and carry