The Hach sensION+ 9655 fluoride ion selective electrode is a half-cell (reference not integrated) fluoride ion selective electrode (ISE) with an epoxy body and non-replaceable crystalline membrane selective to fluoride ions in solution. It is recommended for use with the sensION+ 5044 reference electrode. The 9655 has a fixed 1 meter cable and BNC connector for laboratory use with the Hach sensION+ MM374 Multimeter. The 9655 is ideal for measuring fluoride concentrations in drinking water, wastewater and general water quality applications.

The solid-state sensor design requires little maintenance and allows for dry storage of the ISE without a shelf life or membrane replacement. Ultimately, the 9655 provides fast, stable and accurate response in a variety of sample types.