Programmable tire monitoring device and its method of use

A programmable tire monitoring device includes a casing (10) having an air nozzle (11) on its one end and a set of pin-connection holes (12) and a switch hole (13) on its top side, a circuit board (20) mounted in the casing (10) and carrying a processor (21) and a memory (22), a pressure sensor (23) and a temperature sensor (24) and an acceleration sensor (25) electrically connected to the processor (21) for sensing the pressure, temperature and acceleration of one tire of a car, a transmission interface (27) (28) for transmitting the measured data to a receiver in the car, a connection port (29) installed in the circuit board (20) corresponding to the pin-connection holes (12) for enabling the circuit board (20) to be connected with an external electrical connector (3), a battery set (30) for providing the programmable tire monitoring device with the necessary electric power, a voltage sensor (26) electrically connected to the processor (21) for sensing the voltage of the battery set (30), and a power switch (31) for switching on/off the circuit of the battery set (30). The invention relates also to the method of using the programmable tire monitoring device.