The Asec mechanical digital door lock is a versatile and cost-effective way of restricting access to code holding personnel only. It has an optional hold open facility - it has a sliding button behind the inside knob which can be installed backwards to create a blanking plate if the hold open facility is not required. The code is easy to change and the lock comes complete with an Asec five year mechanical guarantee. This digital lock is supplied complete with a tubular latch with 60mm backset and is ideally suited for light commercial or residential indoor applications on doors between 35mm and 65mm thick.