Abstract: Flow-meter device (1) for the measurement of a flow of at least one fluid through a measurement chamber (3) arranged in a housing (2) of the flow-meter device (1). The flow-meter device (1) has at least one rotating element (4) that is mounted so that it can rotate and can be rotated by fluid flowing through the measurement chamber (3) and at least two rotation sensors (5) for the measurement of the rotation of the rotating element (4). The two rotation sensors (5) are arranged on a common sensor carrier (6) and another temperature sensor (7) is also arranged on the common sensor carrier (6).

Abstract: An arrangement having at least one flow meter (1) for fluids, particularly liquids, and with at least one bypass line (2), via which fluids can be guided past the flow meter (1), with the flow meter (1) including at least one rotationally supported measuring spindle (3). The arrangement includes a housing block (4) with at least one inlet opening (5) and at least one outlet opening (6), and the flow meter (1) and the bypass line (2) are arranged inside the housing block (4), with the inlet opening (5) being connected to the outlet opening (6) in a first operating state via the flow meter (1) and in at least a second operating state via the bypass line (2.