This premium electronic CodeLoxx cylinder provides more security, control and convenience at your door. It is operated using either the innovative digit ring or the usual ABUS Seccor chip key. When the digit ring is used, the four- to six-digit code can be entered by turning and pressing. The digit ring allows for keyless entry and is a safer option for cases where the key is lost or the door slams shut unexpectedly. The cylinder has additional plating for even more protection against break-ins. The unique modular extension system guarantees maximum flexibility during installation, use or structural changes.