It is an ionizer with 8 plates which can provide you 3 levels Alkaline Water, 1 Purified Water and 2 levels Acid Water. pH of our ionizer is from 2.5-11.2 and ORP is from +500-800mV. You can see all the parameters from the screen like pH, ORP,Filter Life Span, Water Flow and so on. And our ionizer has self-cleaning function.