A metal detector for control of protected access comprising two oblong shape vertical housings (10, 12), a structure (14) connecting the upper part of said vertical housings (10, 12), an oblong shape base of support (16, 18) supporting respectively each vertical housing (10, 12) and suitable to be fixed at the floor and that does not present any edge, in order to avoid damages to persons in transit caused by accidental impacts, and emitting and receiving electrical coils (3, 5) provided in said housings, characterized in that at least an additional type of sensors (4) is provided in at least one of said housings (10, 12), in the vicinity of the emitting and receiving electric coils (3, 5).
