Exosens engages in the development, manufacture, and sale of electro-optical technologies in the fields of amplification, and detection and imaging in France, rest of Europe, North America, Asia, Oceania, Africa, and internationally. It offers image intensifier tubes; ultra violet, short and long wave infrared, visible - near infrared, and mid wave infrared cameras, as well as enhanced vision equipment; ion and electron, scintillation, and single photon detection products; x-ray components, neutronic imaging products, and image intensifiers for scientific applications; and gamma and neutron detectors, and mineral insulated extensions. The company also provides power tubes and microwave devices; and methane airborne detection solutions. It operates under the Photonis, Xenics, Telops, and El-Mul brand names. The company serves defense and surveillance, industrial research and control, life science and environment, and nuclear markets. The company was founded in 1937 and is based in Mérignac, France.