Ключевые слова: alarm, away, big, building, business, camera, cctv, circuit, city, concepts, control, crime, danger, electric, electrical, electronic, equipment, exterior, guard, illustration, image, instrument, interior, isolated, lens, look, looking, monitor, object, outdoor, outdoors, park, privacy, private, protection, record, safe, safety, security, symbol, system, technology, television, tool, video, view, watch, watching, webcam, white,