Ключевые слова: access, appliance, background, black, burglar, business, card, close, closeup, code, control, copy, digital, door, electromagnetic, electronic, enter, entrance, female, grey, hand, home, hotel, intelligent, key, lock, magnet, magnetic, modern, office, opening, person, plastic, privacy, protection, reader, safety, scanning, security, service, smart, space, system, technology, text, touch, unlock, wall, white, woman,