A level sensor for detecting the level of a medium

A level sensor for detecting the level of a medium, in particular a liquid medium, comprising an electrical-connection structure and at least one level-detection structure,

• wherein the at least one level-detection structure comprises a plurality of elongated electrodes, which include at least three measuring electrodes and possibly also a calibration or reference electrode, the elongated electrodes being electrically connected to the electrical-connection structure,
• wherein the elongated electrodes extend at least partially in generally side-by-side positions in a length direction of the at least one level-detection structure and each have a proximal end and a distal end relative to the electrical-connection structure,
• wherein the at least one level-detection structure is divided, in the length direction, into a succession of detection sections, each of which includes two effective portions of two respective measuring electrodes of said plurality, the two effective portions extending to a prevalent extent substantially parallel or equidistant, at a first predetermined distance from each other, in the length direction,
• wherein in one or more first detection sections there also extends in the length direction a non-effective portion of at least one further elongated electrode other than the two measuring electrodes that define the two effective portions of the corresponding first detection section, the at least one further elongated electrode being one of said measuring electrodes or else one calibration or reference electrode,
• and wherein the elongated electrodes are shaped in such a way that, at one or more of said first detection sections, the non-effective portion of the at least one further elongated electrode extends to a prevalent extent at respective second predetermined distances from the corresponding two effective portions, the second predetermined distances being greater than the first predetermined distance.