9 Data transmission units, namely, wireless communication devices for data transmission; electronic monitoring instruments, not for medical purposes, being equipment for point-to-point communications, namely, digital transmitters and receivers; network communication apparatus, namely, wireless network communication devices for voice, data or image transmission; wireless communication devices for voice, data or image transmission; recorded computer software for use in automobile racing to monitor and record vehicle tire pressure and temperature, lap time, best lap time, ideal lap time, maximum and average speed, longitudinal and transversal acceleration, and total mileage; downloadable applications for use with mobile devices, in particular, mobile phones, namely, software for use in automobile racing to monitor and record vehicle tire pressure and temperature, lap time, best lap time, ideal lap time, maximum and average speed, longitudinal and transversal acceleration, and total mileage; downloadable software and applications for mobile devices, in particular, mobile phones, namely, software for use in automobile racing to monitor and record vehicle tire pressure and temperature, lap time, best lap time, ideal lap time, maximum and average speed, longitudinal and transversal acceleration, and total mileage; recorded and downloadable computer application software for use in automobile racing to monitor and record vehicle tire pressure and temperature, lap time, best lap time, ideal lap time, maximum and average speed, longitudinal and transversal acceleration, and total mileage; recorded and downloadable computer software for remote monitoring and analysis of tire and automobile performance; recorded and downloadable software for the transmission of data; recorded and downloadable computer software applications for smartphones for measuring data of vehicle running motion; downloadable computer programs for measuring data of vehicle running motion; measuring, detecting and monitoring instruments, namely, tire pressure monitoring systems (TPMS) primarily comprised of tire pressure gauges, electronic sensors, wireless transmitters and receivers; sensors, being tyre monitoring apparatus; tire pressure sensors; tyre-pressure measurers