SX713 Portable Conductivity/TDS/Salinity/Resistivity Meter: 1.Auto calibration 2.Auto temp. compensation. 3.Data storage:100. Portable Turbidity Meter/ Turbidity Analyser Introduction SX713 Portable Conductivity/TDS/Salinity/Resistivity Meter Portable Turbidity meter , widely Applied in bottled water, tap water, sewage, rivers, lakes, beer brewing, food, pharmacy, cosmetics, textile, photographic ...