A textile substrate with a measuring sensor for measuring a physiological signal. The textile substrate has integrated irremovably therewith a base structure component for electronics, such as for example a plastic base for a transmitter for attaching the transmitter and other electronics to the substrate irremovably by way of said base structure component. In addition, signal transfer elements from the measuring sensor are adapted to extend in a watertight manner to the electronics through said base structure component integrated irremovably with the textile substrate.