DORMAKABA 900 Series 938 Digital Lock With Key OverrideThe weather resistant Simplex 900 Series from dormakaba (formerly known as Kaba) is fully mechanical which eliminates the hassle of frequent battery replacement. The 938 features a key override and is designed to suit doors with a thickness of 44mm 54mm. Non handed units Reversible latch Protective clutch mechanism Fast code change whilst unit fitted Suits doors 44 54mm thick Key override