Abstract: A device, for capacitive measurement of a height of a fluid in a tank, comprises at least one pair of capacitors extending in a longitudinal direction. A first capacitor forms first geometric patterns defining a first line capacitance. A second capacitor is opposite the first capacitor and forms second geometric patterns defining a second line capacitance. The first and second geometric patterns are arranged so that the first and second line capacitances, integrated in the longitudinal direction, have a sum that depends on the position of the fluid in the longitudinal direction. The first and second line capacitances, integrated in the longitudinal direction, have a difference that is a constant for reference positions of the fluid in the longitudinal direction.