An apparatus for determining and/or monitoring of at least one flow parameter of a medium, wherein the medium flows through a measuring unit, wherein at least one exciter transducer element is provided, which, based on an exciter signal, excites the measuring unit to mechanical oscillations, and wherein at least one receiver transducer element is provided, which receives mechanical oscillations of the measuring unit as a received signal. The measuring unit has at least one guiding unit and one carrying unit, the medium flows through the guiding unit, the guiding unit and the carrying unit are mechanically coupled with one another, the receiver transducer element and the exciter transducer element are mechanically coupled with the carrying unit, and the receiver transducer element and the exciter transducer element are mechanically coupled indirectly via the carrying unit with the guiding unit.