These passive sensors are available in a variety of cell constants for use in conductivities up to 300,000 μS/cm. Typical applications include RO systems and boiler condensate monitoring. They may be mounted inline or submersion, using either polypropylene (0-100 °C, 100 PSI) or stainless steel (0-120 °C, 200 PSI) 1/2" NPT mounting fittings.