Rotational Position Transducers... Detect and measure the position of rotating equipment and objects using an external rotating shaft and an internal gear train connected to a potentiometer. Configurable for full- stroke ranges of 0.125 to 200 turns (45 to 72,000 degrees).
Simply mount the transducer's housing to a reference surface and connect its rotational shaft to the rotating element to be sensed. As the sensing shaft rotates, a gear train provides the proper ratio of turns to fully utilize the potentiometer.