333-75 Fluoride Mono ION Selective ElectrodeFlouride electrode for applications where greater accuracy is required such as acids, waste water, soils etc. About Fluoride Mono ION Selective Electrode. This electrode requires a separate reference electrode. Suitable for applications where greater accuracy is required (especially when ION levels are low). Applications Drinking water Waste water Acids Soils Food Toothpaste Coal Beverages Specifications Dimensions: 120 x 12mm Concentration: 1M 5 x 10