Industrial Purpose Online Conductivity Tester is used in difficult samples like pure water. Online Conductivity Tester ranges from 20uS to 2 S and features TDS display option. Online Conductivity Tester has ground referenced 4 - 20mA output for data acquisition and also has 2 set point on or off and dead band control. Industrial Purpose Online Conductivity Tester is available in panel mount, wall mount and flameproof enclosure.