The KCIN BT stainless steel keyboard is the innovative keyboard that combines design with robustness and vandal resistance. It can be operated either traditionally via the keyboard or via Bluetooth using an iOS or Android app. Access through the app can be precisely tailored to the access requirements: it is possible to restrict access by time as well as limit it to a certain number of entries (access is denied after a specified number of entries). The KCIN BT comes with a separate controller - this means that the controller can be mounted in a protected area, safeguarding it from tampering. The keyboard itself has no connection to the locking elements.