Shimpo 3030AN - Magnetic Pick-Up Sensor
The 3030AN magnetic pickup provides a sine wave output whenever there is an abrupt change from non-magnetic to magnetic material moving past the sensor pole. The output voltage is directly proportional to the change in magnetic flux intensity over the change in time.
The 3030AN is designed to mount in a 5/8"-18 threaded hole and is provided with a jam nut for sensor securing.