All s::can ISE probes are ion-selective multi-parameter probes that can measure multiple water quality parameters continuously (on-line) and directly in the water without the need for complex and maintenance intensive sample pre-treatment. All s::can ISE probes can be operated according to the “plug & measure” principle. With a simple plug connection, which provides power supply and data communication, the s::can sensors are simply connected to an s::can terminal and ready for use. All s::can ISE probes are pre-calibrated ex works.