SIMPLEX 900 SERIES DIGITAL LOCK, SIMPLEX 900 SERIES DIGITAL LOCK, Push Button Combination Dead Lock, Type 919, Each

Push button deadlocking nightlatch, which can easily replace an existing cylinder rim lock. Combinations can be either single button, buttons pressed sequentially, buttons pressed in unison or a mixture of both. Holdback allows the latch bolt to be held in the retracted position during times when free access is required. 16mm throw. Automatically relocks.