Abstract: A bracelet comprising at least one band of physiologically compatible material deformable elastically in a direction perpendicular to the band, which is preloaded in the form of a C, and presents a first arm fitted with an electrode having a pad, and a second arm with nonslip means, e.g. in the form of ribs or teeth. The bracelet is fitted on to the limb by parting the arms of the band, the residual elastic deformation of which exerts such pressure on the electrode as to hold it in place contacting the skin. At the same time, the nonslip means produce a temporary impression in the skin, for preventing both axial and angular slippage of the bracelet in relation to the limb.