A tire pressure output display receives the determined pressure of the pneumatic tire and displays the calculated pneumatic tire pressure.

The present invention provides a battery-powered tyre pressure sensor including a pressure transducer (10) for sensing a pressure of a tyre and providing a tyre pressure signal.

A tire pressure indicator (110) carried on a tire being monitored for inflation pressure.

A tire pressure sensor in the first tire generates a tire characteristic signal in response to the rotation of the first tire.

The output of the pressure sensor is indicative of a tire pressure detected by the pressure sensor.

The apparatus maintains pressure threshold values, and adjusts them relative to a measured tyre pressure value when it is determined that the measured tyre pressure value exceeds a nominal value.

A data processing module receives the data from the data gathering module, processes the data to determine the pressure of the pneumatic tire and communicates the determined pressure of the pneumatic tire to a tire pressure display.

From the switch (Sl) a high or a low tire-pressure signal is transmitted to a tire pressure monitoring unit (160), from where an individual can observe and correct the tire pressure.

Tire pressure information is sensed.

TPM sensor parameters from a tire pressure monitoring sensor unit are assigned to the specific location of the wheel.

A tire pressure maintenance device is shown and described.

A tire pressure indicator for coupling with a valve stem of a tire.

The rotation of the indicator is related to the tire pressure.

A user alarm is activated if the tyre temperature of any monitored tyre of the vehicle exceeds a predetermined temperature, regardless of the tyre pressure of the monitored tyre.

A universal receiving function can be realised, which can receive modulated signals transmitted from a tyre pressure sensor regardless of the transmission scheme of the tyre pressure sensor installed in the tyre.