Berger - Home Measuring instruments, temperature sensors, pyrometer, temperature gauges, pressure gauges, pressure detectors, thermowells, metal sheet working, military or civil aerospace, telecommunication, sheet metal mechanics and electronics. Berger S.A. is a French manufacturer of hi-tech measuring instruments. It is specialized in the production of work complex temperature sensors, temperature or pressure gauges, pressure detectors and thermowells and flow element set. The enterprise manufactures all types of metal sheets for military or civil aerospace and telecommunication.