The BOQU PXG-2085Pro Online Ammonium Ion Meter offers a new way of ammonium monitoring in different water application. The ammonium Ion analyzer adopts advanced ion-selective electrode (ISE) technology for online continuous monitoring of ammonium ion concentration in water effluent. The ammonium ion electrode of the PXG-2085Pro online ammonium ion meter made with a molded ammonium PVC membrane.The working life of the ammonium 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.