SC 9193000-26D-41. The weather resistant Simplex 900 Series from dormakaba (formerly known as Kaba) is fully mechanical which eliminates the hassle of frequent battery replacement. The 919-3 is designed to suit doors with a thickness of 44mm-54mm and comes supplied with a medium-duty rim deadlatch and internal lever handle.. Non-handed units. Reversible latch. Protective clutch mechanism. Fast code change whilst unit fitted