FPI started with the manufacture and development of an instrument uses the technology of tunable laser diode absorption spectroscopy (TDLAS) for the purpose of monitoring the emitted gases. The company manufactures engineering, scientific and environmental instruments and technologies divided into analytical instruments for environmental monitoring, scientific instruments such as spectrophotometers, chromatographic instruments, and industrial analyzers. The company's products are used in several fields, including industries such as steel and metals, the environment such as smart cities, water monitoring, laboratories for food analysis and others.