Spare pH electrode for HI 981401N and HI 981402, with Teflon ® junction, 2 m (6.6') cable, for general purpose, water treatment and agriculture.Description spare electrode Reference double, Ag/AgCl Junction/Flow Rate PTFE Electrolyte polymer Max Pressure 3 bar Range pH: 0 to 13 Tip/Shape spheric (dia: 7.5 mm) TemperatureSensor no Amplifier no Body Material PEI Cable coaxial; 2 m (6.6’) Recommended Use general purpose, water treatment, agriculture Connection BNC