"their physical sensors are quite large and they are either mounted on the end of valve stems or by a steel band around a rim's dropwell center. In both cases these sensors are subject to damage during tire removal and fitting procedures and the sensors. Banded sensors may also damage the tire bead's air seal."
По-моему в основном используются системы косвенного измерения.
Re: Tire Pressure Monitor
По-моему в основном используются системы косвенного измерения.