A capacitive pressure transducer including a heater shell, a capacitive pressure sensor, an electronics assembly and a thermal barrier is presented. The welding crane comprises a base part which is arranged to be positioned on a ground, a mast with a longitudinal axis. The bar sleeve has a pair of open ends that allow a reinforcing bar to extending fully through the bar sleeve. At least a portion of the mold is then removed to expose the working surface of the diamond which has received a shape which inversely corresponds to the configuration of the mold’s diamond interface surface. Linearization according to the invention, however, refers to a single calibration of the sensor, that calibration being used in common for essentially all media\u2014even though the single calibration is performed with respect to exclusively a single one of the plural media. The apparatus is detachable from a media player to be worn on a neck of a user.