Simplex L1000 Mechanical Combination Lever Lock with Key OverrideSimplex L1000 Mechanical Combination Lever Lock with Key Override Simplex Mechanical Pushbutton Locks eliminate problems and costs associated with issuing, controlling, and collecting keys and cards. The Simplex L1000 Series provides exterior access by combination, while allowing free egress. This mechanical lock, with lever option, eliminates the material and labor expense of battery replacements, has a single access code and is programmed via the