Abstract: A sensing and displaying system is provided including a sensor unit having a transducer disposed in intimate contact with a vessel. The transducer senses a characteristic within the vessel like pressure and outputs an electrical signal representative thereof. The sensor unit further includes a response signal generator which transmits a signal representative of the characteristic. A receiver unit receives the transmitted signal and converts it to visual indicia of the characteristic, for example, a number on a liquid crystal display. The system is capable of two-way communication between the sensor unit and the receiver unit. Both the sensor unit and receiver unit store transmitted data in internal memory.

Abstract: A tire pressure sensor is provided including a transducer unit having a mechanical-to-electrical transducer disposed in intimate contact with the pressurized region of a tire. The transducer senses tire pressure and outputs an electrical signal representative thereof. The transducer unit further includes a response signal generator which transmits a signal representative of tire pressure. A hand-held remote display unit receives the transmitted signal and converts it to visual indicia of tire pressure, for example on a three-digit digital display.