Ключевые слова: adult, alarm, alertness, background, burglar, buttons, closeup, code, crime, danger, detector, device, digital, electronic, entering, equipment, guard, hand, home, house, indoors, inspect, keypad, male, man, mature, modern, owner, panel, password, person, pressing, prevention, privacy, private, property, protection, safety, security, senior, sensor, signalization, system, technology, warning,