TIRE PRESSION MONITORING SYSTEM (TPMS) INTRODUCTION TPMS-1A（Tire Pression Monitoring System） comprises of two parts, the host system and the extension systems. The installation process of the host system is very simple. The host system is inserted in the socket of the smoke- device; and the extensions are stuck on the wheel hub respectively . When the rotating speed of the tire reaches three circles per second, every extension will control the inverter by dynamic sensor and detect the tires soundness through pressure and temperature sensors in real-time. If any pressure or temperature problem occurs, the information will be sent wirelessly to the host system, after the host system has calculated and evaluated various data through the Center Processing Unit (CPU), it sends the?didi ?voice, the digital display and the light signal to alarm the driver so that he can take the appropriate corrective actions. TPMS-1B comprises of two parts, the host system and the extension systems. The installation process of the host system is very simple. The host system is inserted in the socket of the smoke- device; and the extensions are stuck on the wheel hub respectively . When the rotation speed of the tire reaches three circles per second, every extension will control the inverter by dynamic sensor and timely detect the tires soundness through pressure and temperature sensors. If any pressure or temperature problem occurs, the information will be sent wirelessly to the host system, after the host system has calculated and evaluated various data through the Center Processing Unit (CPU), it sends the corresponding voice, the digital display and the light signal to alarm the driver so that he can take the appropriate corrective actions.