The only thing missing is the switch plate

But you could just use the same one from what ever door your replacing

The MiLocks TKK-02SN Digital Entry Door Knob with Keypad in Silver is a round, classic style entry door knob suitable for residential and interior/exterior doors. Made of aluminum, stainless steel, brass, and nickel, the knob features keyless entry, adjustable backset, and easy installation. With a knob diameter of 2 inches and a weight of 2.5 pounds, this door knob provides security and convenience for your home or business. The satin finish and keyless operation make it a stylish and practical choice for your door hardware needs.