... points calibration function 4.can set buffer 5.Ion Analyzer Characteristics:1.Novel touching LCD screen;2 ... can set buffer solutions groups by yourself3.With major ion mode, such as: H+,Ag+,Na+,K+,NH4 ... )mg/L,mol/L,PX6.Set self-defining ion mode, and can also measure the other ion7 ... concentration value correspondence to potential measurement range and indicator electrode 2. Resolution: pH/pX: 0.01/ 0. ...