Abstract: The present invention relates to a device for measuring a magnetic field and, more specifically, for measuring direct and/or alternating currents circulating in a primary conductor. The current sensor 1 according to the invention comprises: •at least two magnetic transducers 2, 3, each comprising at least one elongate coil 5, 6, forming a loop surrounding the primary conductor; •at least one loop closure mechanism allowing two ends of the coils 5, 6 of a transducer 2, 3 to be retained while providing: —a negative mechanical gap between the two ends of the coils 5, 6 closing each loop, along a first elongation axis Y of the coils 5, 6; an offset of each end of a coil 5, 6 of a loop relative to the other end of a coil of the loop, along an offset axis X; —a mechanical inversion of the offsets between the loops.