SC Interior Code Change 5031XK-WL-26D-41. The weather resistant Simplex 5000 Series from dormakaba (formerly known as Kaba) is a fully mechanical digital lock solution, eliminating the hassle of frequent battery replacement. The lock can be easily programmed via the 5 pushbutton keypad and does not require the lock to be removed from the door. This knob operated digital lock supports a single access code and can be easily reversed on site to suit both left and right handed doors. This Simplex 5000 series is extremely durable and suited for high traffic external and internal applications.. Non handed lock (reversible). 5 pushbutton keypad. Ideal for controlling access to high traffic security sensitive areas. Installs on wood or metal doors