Smart Remote Electronics, Toroidal Conductivity, Modbus 485 output, DIN Rail Mount, 0-2000 mS Range, Sensorex, Mfr#: SSRE-T-MB/DR/2000$495.99+
Light-Duty Contacting Conductivity / TDS Sensor with (ATC), Sensorex, Mfr#: CS150TC-K=0.1/CM1000$244.99+