Concept: 1. Different from regular electronic sensor locks, this design was created to address the various conditions that can occur during user operation. A sleek and minimal sliding cover is integrated together with a conventional cylinder providing total concealment. It can be opened when there is no power or electrical parts are damaged. Innovative egress function inside lever retracts latchbolt and deadbolt simultaneously. It offers greater convenience and safe exit when needed. 2. Equipped with a patented auto deadbolt throw device. 3. Heavy duty mortise lock case endures fire with UL three hours fire test and ANSI 156.13 Grade 1 certified.