The invention relates to a self-contained electronic device for detecting and alerting of the saturation of a protection layer article used for urofecal incontinence, including at least one self-contained electrical generator module comprising an arrangement of pairs of elements having metal electrodes that are electrically connected to one another and distributed over a predetermined inner area of the article, made of zinc-copper in particular, intended for generating a current upon contact with an acidic and aqueous urofecal medium by means of a redox reaction, in order to electrically control, in a self-contained manner, the inner and outer means for giving notification of the saturation, in particular light means, sound means, or means for analogue or digital transmission of wired or wireless signals. The invention is useful in a protection layer article for urofecal incontinence for seniors or infants.