This inductive sensor detects the rotational speed or position of a component within the drivetrain of the host tractor. It is mounted in the electrical system near the transmission or rear axle, where it monitors a toothed wheel or target. The sensor generates a pulsed signal that the engine or transmission control unit uses for functions such as PTO engagement, speed matching, or gear selection. A failing sensor may cause intermittent or lost speed readings, leading to warning lights, reduced performance, or system lockouts. The original component is calibrated to the same air gap and signal threshold as the factory assembly, ensuring the control unit receives a consistent waveform without adjustment.