A wide selection of Hach Sension+ electrodes are available to meet almost all laboratory and field applications. Measureable parameters include pH, Dissolved Oxygen, Conductivity, ORP, Ammonia, Ammonium, Chloride, Fluoride, Nitrate, and Sodium. All pH probes are delivered with storage tubes. Field probes are equipped with screwable calibration tubes, serving excellent usability in the field and minimising buffer consumption. Several multi probes are available for Sension+ portable multi meters, saving time and money due to the simultaneous measurement of up to three parameters, combined with convenient handling.