Abstract: The invention relates to a tire pressure sensor that includes a pressure transducer, a transmitter, and a housing carrying the pressure transducer and the transmitter, adapted to be mounted to an air inlet end of a tire valve; wherein the housing has a sleeve part which has an internal thread at the end for screwing the sleeve part onto the tire valve. The tire pressure sensor according to the invention is characterized in that the housing further has a receiving part in or on which the pressure sensor and the transmitter are arranged and which, in the mounted state, is connected to the sleeve part so as to be rotatable relative to the sleeve part.

Abstract: The invention relates to a fastening apparatus for fastening a measuring sensor, such as a tire pressure sensor, within a tire cavity on a vehicle rim, having a band-shaped tensioning belt which has a receiving device for the measuring sensor; wherein the band-shaped tensioning belt comprises an elastic material. The fastening apparatus according to the invention is characterized in that the band-shaped tensioning belt is provided in the form of a continuous endless belt, which is closed on its circumference and is only elastic in sections.