A magneto-mechanical sensor can be use for paramagnetic gas analysis, in which a test piece has a conductor loop is rotatably held by at least one suspension wire. In order to be able to produce the conductor loop, which is to be electrically connected to the at least one suspension wire, with little manual effort and use a small-sized, light-weight sensor, portions of the conductor loop are applied to the surface of the test piece using a metallization process.