Low-range pocket salinity tester, 1 to 3 points calibration, setup menu contains 5 options, the tester is suitable for general applications, accuracy: 1% F.S.
High-range pocket salinity tester, 1 to 3 points calibration, setup menu contains 5 options, the tester is suitable for measuring seawater and high salinity liquids, accuracy: 1% F.S.