The easiest upgrade path to adding a Tyre Pressure Monitoring System to your android headunit is to use the USB based transmitter and the 4 (or more) dust cap style transmitters. This system is universal amongst android Headunits and removes the need to have tyres removed and sensors fitted.
An APP on the headunit constantly monitors the tyre pressures. A USB adaptor communicated with the dust cap style pressure sensors. The APP will display a warning over the screen if the monitored pressures deviate from pre-set pressures
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