electronic lock 1. hotel room lock 2. stainless steel, never fade 3. free software in English 4. for hotel, apartment, offic 2012 new electronic lock Main Advantages:(1) Inner and outer handle "dissociation" (2) Patent detached two-gear clutch device (3) Mortise: 5 latches with deadbolt (4) Electronic Lock Low-voltage alarm function (5) American standard lock core (6) Japan motor, more than ...