Abstract: A thermographic strip chart recorder for the recording of medical data includes a thermo printout head for the digital recording of additional medical data. Thermo sensitive paper is transported from a supply spool over a knife edge member and across a platen. Both a galvanometrically controlled thermo stylus for recording analog data and the thermo printout head are aligned to produce their respective indicia on that portion of the paper in contact with the apex of the knife edge. The thermo printout head permits the recording of digitally coded or alphanumeric data relative to the patient in real time registration with the analog information. Physical location of the thermo printout head along the knife edge permits viewing of the paper as it crosses the platen without obstruction.