... Rs485(Modbus/RTU) (Option) DisplayLED model: 4 bits LED display. Just display conductivity / ... 0.1~400mS/cm(4-electrode sensor)0~2000mS/cm(Inductive sensor)Resolution0.01μS/cm( ... -1), 0.1mS/cm(4-electrode sensor)1mS/cm(Inductive sensor)Thread3/4" NPT threadPower supply5VDC, 24VDC ... (plastic skeleton, graphite),0.4cm-1 (4-electrode sensor) (plastic skeleton, graphite),Inductive electrode(Polypropylene ...