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In 1896 great Russian inventor and scientist was born. They say he is the most famous for the fact that he had invented a new musical instrument - a theremin, which he has showed off to Vladimir Ilyich Lenin in March 1922. Yet, except for innovations in the music, this scientist is known by the fact that he had invented a variety of automated systems, alarms security devices. It was he who laid the foundations of modern security systems. His inventiveness were truly exceptional. The story goes that in 1945 the U.S. Ambassador Harriman presented a gigantic wooden panels, made from costly wood, in which are mounted listening mechanism, invented Tremenom. This enabled the Soviet intelligence services during the entire 8 years to listen to discussions in the office of Ambassador, and verification of U.S. intelligence agencies did not help. After his discovery tipster passed at the UN to prove that the USSR has intelligence activities. Still, to find and discover the mystery of the principle of such tool, they could not. Nowadays, technological progress has made many significant steps forward. Such mechanisms are used not only in intelligence, but also gives confidence and security to ordinary citizens. A trendy tool for security guarantees is CCTV installation. Such systems can be installed on any object, whether industrial building, office or apartment. Such systems, depending on complexity, can only transmit video information to the screen or through the Internet to a remote computer, or write to the hard drive with an opportunity to view it. For the record you need camera video recorder and hard drive for storing information. The camera can act all the time or switched on, if the object detected human movement. In general, the opportunities are many and everyone can select for themselves the option that best suited him for money, and the level of comfort. Of course, focused firms in the industry will have a happy full range of services, from design to maintenance of installed systems. In add to security systems, such firms provide the following services: alarm button, perimeter security, fire alarm system and many others. So in the case of cooperation with such companies, comfort and safety are guaranteed.
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