Abstract: A device for controlling an implanted medical device [IMD] is disclosed and which includes a housing; a magnet mounted within the housing and which generates a source of electromagnetic radiation which is effective in changing the operational condition of the IMD; an electrical sensor borne by the housing and which detects a source of electromagnetic radiation emitted by the IMD, locates the IMD within a patient's body, and identifies the type of IMD within the patient's body; a signaling assembly borne by the housing to give a signal to a user; and a source of electrical power mounted on the housing and which selectively electrically energizes the device.