A pressure sensor for producing an electrical signal when it is pressure-loaded has at least two metallic contact elements (2, 5) which are located at a distance from one another in the condition where no pressure load is applied and make contact with one another when a pressure load is applied which is above the lower limit value, and of which at least the one is designed as a helical spring (5) which in consequence can be elongated and elastically deformed and which returns to its original position and shape when the pressure load is removed. <IMAGE>
