Sixity Auto: Shop components built by a pioneer in the development of TPMS sensors. The Huf / BH Sens group specializes in the development of modern direct measuring tire pressure monitoring systems for well-known car manufacturers. Huf BH SENS tire pressure monitoring systems and sensors provide reliable warning against loss of air pressure to help maintain tire life, optimize fuel consumption, and reduce CO2 emissions. + 100% Fitment Guarantee.