1. A magnetically inductive flow meter unit for determining a flow rate of a fluid flowing through a measuring tube, the flow
a measuring tube that has a measuring channel;
a measuring sensor arranged in the measuring channel and is oriented in alignment with an inner surface of a wall of the measuring
an electrode head made of an electrically conductive material and having a fluid contact section, the electrode head being
in direct contact with the fluid flowing through the measuring tube via the fluid contact section; and
an indentation formed on a side of the electrode head facing the fluid, which forms at least part of the fluid contact section.