Slide for a vehicle seat with position-measuring device

There is a male and female profile linked to the slide according to a predetermined length. The slide comprises a detector (18) imposed on each of the profiles. There are also detectable organs (94) imposed on the two profiles. The male profile (9) has a general section in the bottom comprising a horizontal depth (91). The female profile (8) holds detectable organs, which are made up of a projection (94) integral with one of the recoils (93) of the male profile. The lateral wall (8a) corresponds with the female profile allowing the detector to determine which profile to trigger.