VG481V1 Back-Biased Hall-Effect Speed Sensor IC Honeywell VG481V1 Back-Biased Hall-Effect Speed Sensor Integrated Circuit (IC) uses a dual-peak-detecting circuit derived from the stored peak and valley values. This detecting circuit allows the sensor to provide a zero-speed capability. The cost-effective and easy-to-use module can accurately track targets that exhibit run-out and other variations. Honeywell VG481V1 Back-Biased Hall-Effect Speed Sensor IC is AEC-Q100 qualified and ideal for many automotive applications.