The Board of Directors of Marathon Sensors, Inc., Cincinnati, Ohio, has announced the appointment of Dr. Eric Boltz as president. Mr. Boltz will have responsibility for operations in the U.S. as well as in Europe and Asia, for both thermal processing and combustion products. Boltz most recently served as Marathon's senior vice president of sensor product development and brings to the office extensive background in the design, manufacture and implementation of high temperature instrumentation and sensor systems for heat treating applications. He also has more than a decade of experience in sensor R&D.