The EX2000RS toroidal conductivity transmitter has one 4-20 mA output, an RS-485 serial interface for use with Modbus RTU or ASCII, and can display conductivity, percent concentration, TDS, and salinity. Use with either the durable Noryl-body TCS3020 Toroidal Conductivity / TDS Sensor or the TCS3020 PEEK Toroidal Conductivity / TDS Sensor. Both are resistant to fouling, coating, and corrosion and requires virtually no maintenance. The PEEK version offers extraordinary chemical resistance and can handle applications with higher temperatures.