Device and method for measuring an electrical property of a fluid flowing through a pipe

A device for measuring an electrical property of fluid flowing through a pipe, comprising:

• at least a first measuring electrode and a second measuring electrode placed in spatial contact with the pipe;
• wherein the first measuring electrode is received in a body placed inside the inner wall of the pipe, and being separated from the inner wall of the pipe by a gap, the gap extending over at least a part of the periphery of the inner wall of the pipe;
• and
• a measuring circuit adapted to:
• i) measure a capacitance of the fluid between the first measuring electrode and the second measuring electrode, the measuring circuit being connected to the first measuring electrode and to the second measuring electrode, and
• ii) measure an electrical conductivity of the fluid between the first measuring electrode and the pipe, the pipe being adapted to function as a third measuring electrode, and the measuring circuit being connected to the first measuring electrode and the third measuring electrode.