Tires containing a monitoring device for monitoring an engineering condition therein

A tire having means for monitoring at least one engineering condition of the tire, comprising:

• the tire mounted on a rim defining a pressurizable cavity between the tire and said rim;
• a monitoring device, said monitoring device in fluid communication with said pressurizable cavity and located on a boundary of said pressurizable cavity so as to minimize stress, strain, cyclic fatigue, impact and vibration, said monitoring device including a battery, a circuit for data band switching, an integrated circuit including means for storing data, at least one sensor for sensing each engineering condition, means for converting each of said sensed conditions to data for storing, means for energizing the circuit for data band switching to activate the battery from a passive mode to an active mode, means for transmitting said data responsive to a signal while the battery is active, and means for energizing the circuit for data band switching to deactivate the battery from the active mode to the passive mode after transmitting said data.