bar code readers; encoded magnetic cards; magnetic encoders; biometric identity cards; punched card machines for offices; home automation hubs; smart home hubs; theft prevention installations, electric; anti-theft warning apparatus; locks, electric; electronic access control systems for interlocking doors; padlocks, electronic; biometric locks; fingerprint door locks; fire alarms; push buttons for bells; peepholes [magnifying lenses] for doors; buzzers; electric door bells; smoke detectors