1. The measurement can not be influenced by the change of fluid density,viscosity,temperature,pressure and conductivity; 2.The inside of measuring tube do not have the parts to block the flow move,no pressure loss,low demand in straight pipe; 3.Totally deal with digital quantity, high anti-interference,reliable measurement,high precision,flow range reach to 1500:1; 4.Converter adopts to 16-bit embedded microprocessor and surface mounting technology,convenient preferences,totally chinese menu operation,easily use,with self-check and diagnosis functions; 5.With the function of measuring two way flow,can show the positive and reverse flow,also have two way current and rate output,which is convenient for the record and store different flow signal;