It is a current-production component in Schneider Electric's catalog.
Deployed as a safety guarding device, this light curtain creates an electro-sensitive protective field between emitter and receiver. It is typically mounted on machine access points — press brakes, assembly stations, robotic cells — where a person reaching into the hazard zone must be detected and the machine stopped before injury. The sensing range and resolution (not specified in this listing) determine the minimum object size it catches and the maximum separation distance from the hazard.