The Kaiser Nienhaus 322511 is a surface-mount keypad unit designed for the DECODED Controller Versa 4. It features a sleek and secure entry system ideal for access control applications. Commonly used in residential and commercial buildings, it enhances security with reliable access management. https://elecena.pl/product/29001419/kaiser-nienhaus-322511-keypad-unit-surface-mount-2-keyboards-4-codes 2025-06-29 https://elecena.pl/product/29001419/kaiser-nienhaus-322511-keypad-unit-surface-mount-2-keyboards-4-codes 2026-08-25