Lock your door without a key with the Yale ENTR Kit YS-L1. With this smart door lock you get your door off the lock with your smartphone or with the included remote control. So it is no longer necessary to give keys to all your family members or for example the babysitter. Give guests temporary access via the app and they can easily enter. You let the door automatically lock, as soon as you close it. This way you can be sure that the door is not accidentally open when you are on vacation. Do you not get a connection via the app? Then open the door in the old-fashioned way, with the included emergency key. From inside you always open the door without a key.