The ABUS CodeLoxx CLX-LPxA-EFP Alarm AE255F Proximity Protocol is an electronic double-knob cylinder for professional access control systems. It combines contactless proximity technology with advanced alarm and logging functions, enabling secure door control in commercial and public buildings. The cylinder is part of the CodeLoxx system and is particularly suitable for buildings where access control, alarm control, and user management need to be integrated.

Operation is convenient via proximity transponders or compatible chip keys. This allows doors to be opened quickly and without contact, while minimizing mechanical wear. At the same time, electronic evaluation ensures reliable access control with clearly defined permissions.

A particular advantage of this model is the integrated radio module in the inner knob. In conjunction with the AE255F evaluation unit, the cylinder can be used directly to control an intruder alarm system. This allows for convenient arming and disarming of alarm systems and the implementation of additional control functions.

The integrated logging and time-based function allows events to be documented and access rights to be managed according to time. This makes it possible to precisely define which people have access and at what times. At the same time, a high level of tamper protection with additional drill protection ensures increased resistance against break-in attempts.

Thanks to its modular extension system, the cylinder can be flexibly adapted to different door thicknesses. This makes the ABUS CodeLoxx CLX-LPxA-EFP ideal for office buildings, industrial facilities, public institutions, or complex locking systems with integrated alarm control.