Simplex EE1011/EE1011-26D-41 Mechanical Pushbutton Cylindrical Entry/Egress (Back-to-Back) Knob Lock, No Key Override, 2-3/4" Backset, Satin Chrome

The Simplex EE1000 Series provides interior and exterior access by combination. This mechanical lock, with knob option, 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.