BLK 6204-85. The weather resistant Simplex 6200 Series from dormakaba (formerly known as Kaba) is a fully mechanical digital lock solution, eliminating the hassle of frequent battery replacement. The lock can be easily programmed via the 5 pushbutton keypad and does not require the lock to be removed from the door. This knob operated digital lock supports a single access code and can be easily reversed on site to suit both left and right handed doors. This cost effective access control solution also features vandal resistant, solid metal pushbuttons for outstanding durability.. Factory handed left - field reversible. Reversible latch. Protective clutch mechanism. Fast code change whilst unit fitted