The invention discloses a proximity sensor (1) comprising at least one detecting unit (10) of at least one obstacle (40) and a control unit comprising receiving means (22) of first and second parameters (P1, P2) representative of the detecting unit and of features of the obstacle (40). The control unit (20) is further responsible for generation of detection signals (S, S1, Si, Sj) of the obstacle (40), as a function of the first and second representative parameters (P1, P2) and of third representative parameters (P3) of the detected obstacle (40).