Digital keypads with card readers support two-factor access by requiring a user to present a registered proximity or smart card and enter a corresponding PIN on the keypad. The door unlocks only after the access system validates both credentials, adding an extra verification step compared with card-only or PIN-only entry.

Choose a mullion-mount digital keypad with a card reader when space on a narrow door frame or stile is limited, and choose a single-gang design when the installation provides a standard single-gang box or larger mounting area. Also consider indoor or outdoor exposure, vandal resistance, credential types such as proximity, high-frequency cards, mobile credentials, or PINs, and whether the reader supports the access control system’s wiring and communication methods.

Digital keypads with card readers may require 12–24 VAC or VDC power, relay wiring for standalone door control, or connection to an access controller through Wiegand or Open Supervised Device Protocol (OSDP), depending on the device. Confirm that the access control system supports the reader’s credential technologies, such as proximity, high-frequency smart credentials, mobile credentials, or PIN entry, along with the required controller, door-lock, and exit-device connections.

Compare the mounting style, housing durability, weather and tamper resistance, backlit keypad, and operating voltage to match the installation environment and available space. Also review supported credential types, PIN and card access modes, mobile or proximity compatibility, two-factor authentication, output capacity, user management, and connection options such as Wiegand or OSDP.