Abstract: A subcutaneous medical device system includes a subcutaneous medical device, a magnetic element arranged on a portion of the subcutaneous medical device, the magnetic element including at least two poles, and a magnetic detector arranged spaced apart from the magnetic element and outside of a patient. The magnetic detector includes a single magnetic sensor and a processor coupled to the single magnetic sensor. The processor is programmed to determine a position of the portion of the subcutaneous medical device within the patient based on a static magnetic flux measurement of the magnetic element by the single magnetic sensor without externally applying an external magnetic field to the magnetic element.