The invention relates to a measuring apparatus (10) for measuring a filling level of a container, which measuring apparatus has a measuring arm (12) with a float element (18) which is designed to change its angular position about a rotation axis (38) depending on the filling level. A magnet element (24) is connected to one end of the measuring arm (12) in a rotationally fixed manner. A magnet-sensitive element (26) is designed to output a measurement signal (27) depending on the angular position of the magnet element (24). The measuring apparatus (10) is characterized in that the measuring arm (12) is mounted in a first bearing (22) and additionally in a second bearing (36), wherein the magnet element (24) is arranged in an intermediate space (34) between the first bearing (22) and the second bearing (36).