PROBLEM TO BE SOLVED: To provide an electronic tire management system that conserves energy.SOLUTION: An electronic tire maintenance system is provided for measuring a parameter of a device. The system includes a sensor 18 for measuring the parameter of the device and generating a data signal representing the measured parameter. The system also includes a microprocessor and a memory device 16 coupled to the sensor for activating the sensor on a first periodic basis to measure the parameter of the device. A transmitter and a receiver 30 are coupled to the microprocessor. The microprocessor periodically and partially awakens to determine, on a second periodic basis, if a received transmission is a valid interrogation signal and, if the received transmission is a valid interrogation signal, fully awakens and responds to the valid interrogation signal, via the transmitter, by at least transmitting the last stored measured parameter. The device is a tire tag 14 mounted inside a tire.