Simplex 6200 - Cylindrical, Thumbturn

Simplex Mechanical Pushbutton Locks eliminate problems and costs associated with issuing, controlling, and collecting keys and cards.
Simplex 6000 provides fully mechanical exterior access by combination, while allowing free egress at all times by interior knob. This fully mechanical lock eliminates the material and labor expense of battery replacements, has a single access-code and is programmed via the keypad without removing the lock from the door.