Online Acidity/Alkalinity Concentration Monitor 1.Scale:0~15% HCL,H2SO4,NaOH,HNO3 2.Temperature:- ... 10~100 3.4~20mA Online Acidity/Alkalinity Concentration Monitor General introductionAcid, alkali, salt concentration transmitter is a kind of ... solution exceeded, the transmitter output overload, the maximum current does not exceed 30 mA. Technical parameterScale0.1% ~ 15% HCL, H2SO4, HNO3 ...