Ключевые слова: a refund system, access, automation, box, concierge, control, efficiency, electronic code, ergonomic, fingerprint, heavyduty, identification, it is easy, it is important premises, key ring, key storage, keys, lock, module, object, pencil case, plant loss, protection, reception, reliability, reliable, section box, security, signal, simple, stainless steel, the property, wall, wall cupboards,