XENSIV™ - TLE4921-5U magnetic speed sensor with reduced power consumption Infineon's TLE4921-5U differential Hall effect sensor offers high sensitivity, superior temperature stability, and symmetrical thresholds for stable duty cycle. It is ideal for rotational speed detection in applications like anti-lock braking systems, transmissions, and crankshafts. The digital signal output is unaffected by radial vibration and requires no external signal processing.