The present invention relates to an autonomous electronic device for detecting and warning of the saturation of an article of the type of protective layer for the incontinence urofécale comprising at least one autonomous electric generator module comprising an arrangement of pairs of elements to metal electrodes are electrically connected to one another and distributed over a predetermined zone of the article, in particular zinc - copper, intended to generate a current in contact with an acid aqueous medium urofécal and by an oxidation-reduction reaction, in order to electrically control means independently of the internal or external warning of the saturation, in particular type of light, sound, analog or digital transmission of signals with a wire or wireless.. Application to an article of the type of protective layer for the incontinence urofécale for senior or the field of infantile.
