Which type of credential reader is commonly used for physical identification?

The card reader is commonly used for physical identification because it allows individuals to gain access to secure areas by presenting a card, which often contains encoded data that uniquely identifies the user. This method is widely adopted in various settings such as offices, schools, and restricted facilities because card systems can easily be integrated into electronic access control systems and can provide features such as easy management of users and access levels.

Card readers can work with various types of cards, including magnetic stripe cards, proximity cards, and smart cards, making them versatile for different applications. They are recognized for their convenience and efficiency in enabling quick access to authorized personnel while also maintaining security.

In contrast, while biometric readers use unique physical characteristics for identification (such as fingerprints or facial recognition), they may require more complex technology and may not be as widely used in every environment. Keypad readers require users to remember and enter a PIN, which can lead to security issues such as forgotten codes. Fob readers utilize small keychain devices that must be carried by users, which can lead to loss or misplacement. Although all these options serve identification purposes, the widespread and practical usage of card readers in diverse environments makes them a popular choice in electronic access control systems.