INTRON

Calling, exchange and intercommunication apparatus, namely, industrial intercoms, paging and public address systems for in-plant communication, alarm broadcasts and transmission of process information in factories, industrial plants, oil platforms and other industrial buildings and installations comprised of microphones, loudspeakers, central processing units for processing information, data, sound or images, interfaces, controllers, apparatus for wireless transmission of signals and acoustic information, explosion-proof and weatherproof intercom stations, speech amplifiers, circuit boards, software to control, program and edit connections and parameters for intercommunication and broadcasting voice or sound messages and alarm tones