Mettler-Toledo Seven-Multi Conductivity/TDS/Salinity Meter

Conductivity range       0.001 μS/cm to 1000 mS/cm, autoscaling

Accuracy                       +/- 0.5%

Temperature range      -30 to 130 deg. C (+/- 0.1 deg C)

TDS range                     0.01 mg/L to 1000 g/L

Resistivity                      0.00 to 20.00 MΩcm

Salinity range                0.00 to 80.00 ppt