Classical benchtop conductivity meter, 1 to 3 points calibration, setup menu contains 7 options, the meter is suitable for measuring conductivity and TDS, accuracy: 1% F.S.
Professional benchtop conductivity meter, 1 to 5 points calibration, setup menu contains 11 options, the meter is suitable for measuring conductivity, TDS, salinity and resistivity, accuracy: 0.5% F.S.