A programmable tire monitoring device includes a casing having an air
nozzle on its one end and a set of pin-connection holes and a switch hole on its top side, a circuit board mounted in the casing and carrying a processor and a memory, a
pressure sensor and a temperature sensor and an acceleration sensor electrically connected to the processor for sensing the pressure, temperature and acceleration of one tire of a car, a transmission interface for transmitting the measured data to a
receiver in the car, a connection port installed in the circuit board corresponding to the pin-connection holes for enabling the circuit board to be connected with an external
electrical connector, a battery set for providing the programmable tire monitoring device with the necessary
electric power, a
voltage sensor electrically connected to the processor for sensing the
voltage of the battery set, and a power switch for switching on / off the circuit of the battery set. The invention relates also to the method of using the programmable tire monitoring device.