The Simplex L1000 Series provides exterior access by combination, while allowing free egress. This mechanical lock, with knob option, eliminates the material and labour expense of battery replacements, has a single access-code and is programmed via the keypad without removing the lock from the door. This heavy-duty commercial quality product is extremely popular and often seen used in healthcare, educational and business facilities.  Please note that this product is not subject to our normal returns procedure and will only be repaired by the manufacturer, rather than replaced, products may be subject to manufacturer's checks and their policy on replacements will apply.