The BOQU PXG-2085Pro Online Potassium Ion Meter offers a new way of potassium monitoring in different water application. The potassium Ion analyzer adopts advanced ion-selective electrode (ISE) technology for online continuous monitoring of potassium ion concentration in water effluent. The potassium ion electrode of the PXG-2085Pro online potassium ion meter made with a molded potassium PVC membrane.The working life of the potassium ion electrode (ISE) is over one year, because the ion sensor membrane is special designed by BOQU Instrument and it can be replaced in period according to water quality at site.so it can save much maintenance cost.