Online Acidity/Alkalinity Concentration Monitor 1.Scale:0~15% HCL,H2SO4,NaOH,HNO3 2.Temperature:-10~100 3.4~20mA ... current does not exceed 30 mA. Technical parameterScale0.1% ~ 15% HCL, H2SO4, HNO3, NaOH etc.AccuracyClass 2.5Load Characteristics0-1000Ω when ...