Which device is NOT classified as a physical access control?

Surveillance cameras are primarily categorized as a monitoring tool rather than a direct access control device. They serve the purpose of observing and recording activities in a given area, thereby deterring potential unauthorized access or identifying suspicious behavior after the fact. However, surveillance cameras do not physically restrict access to locations or resources; they do not actively prevent entry or control who can access a specific area.

In contrast, biometric systems, locks and keys, and electronic access cards are all designed to physically restrict or control access to secured areas or resources, ensuring that only authorized individuals can enter. This distinction underscores why surveillance cameras do not fit the same classification as the other options listed.