Sensor for Registering an Analyte Concentration

A sensor for registering an analyte concentration, comprising:

• a housing;
• a sensor element arranged within said housing, said sensor element has a front surface pressed toward a housing wall of said housing, wherein said housing wall has an opening exposing an analyte sensitive region of said front surface;
• at least one contact element for electrical contacting said sensor element;
• an inner electrolyte which is in contact with a medium surrounding said housing via an electrochemical, liquid junction arranged in a housing wall;
• and
• a reference electrode extending into said inner electrolyte, wherein:
• there is arranged within said housing a flexible circuit card, which includes at least a first conductive trace, which is connected with said at least one contact element of said sensor element, and at least a second conductive trace, which serves as a potential sensing element of said reference electrode.