Abstract: As a component belonging to a class of components having hysteresis cycles of similar characteristics, the component of the invention subjects group of probes, in the absence of field-disturbing members situated in relationship with the probes, to a determined induction field so that a "bias" induction difference (B.sub.O) appears between the two groups, which difference is not less than the value of the high switchover threshold (B.sub.H), or not greater than the value of the low switchover threshold (B.sub.B), or else lies between the switchover thresholds (B.sub.H and B.sub.B), thereby obtaining a signal in a determined logic state at the output from the hysteresis level comparator in spite of induction difference dispersions lying between the minimum value of the low threshold (B.sub.Bmin) and the maximum value of the high threshold (B.sub.Hmax). The invention is applicable to differential detection Hall effect sensors.