Filling-level measurement device with a housing and a measurement cell arranged inside the housing, wherein the measurement cell comprises an essentially cylindrical measurement cell body, which comprises a membrane arranged crosswise relative to a longitudinal axis of the measurement cell body, wherein the measurement cell is mounted in the housing by a circumferential sealing element, which is arranged between the measurement cell body and the housing, wherein the sealing element is arranged in axial direction of the measurement cell in such a way that a measurement signal emitted by the measurement cell is independent from a compression of the sealing element.