Ключевые слова: access, alarm, alert, appliance, authorization, burglar, button, code, combination, computer, concept, control, crime, device, digital, door, electronic, emergency, entrance, entry, equipment, home, house, identification, indoor, interior, key, keypad, lock, modern, number, panel, password, person, press, protection, safe, safety, secure, security, sensor, set, sign, system, technology, thief, unlock, wall, warning, white,