CTAPMS is an electronic system designed in this work to monitor the air pressure inside pneumatic tyres on various types of vehicles. A crucial issue in monitoring air pressures of a tyre was most users are too lazy and do not check their car tyre condition daily or before starting a journey. As an assist device for the user to monitor their car air tyre pressure daily, this project has developed the CTAPMS using a BMP180 sensor and Node MCU 8266 microcontroller board. Based on the system, the measured car air tyre pressure can be visualized from the ThingSpeak IoT platform through a smartphone. The performance of the developed system has been validated through a series of experimental works. The result indicates a reliable measurement with an error of less than 10% as compare to the existing system. Further, this product will be commercialized for future use