The Nemef Entr door lock allows you to open your door in multiple ways, without needing to drill any holes. You can open and control the door with a key, remote, PIN code, or app on your smartphone (iOS and Android). The app and remote both work with a Bluetooth connection. You can easily open the door within a range of up to 25 meters of the door. You can replace your current cylinder by a fitting SKG*** Nemef cylinder and install the smart lock on your door. Make sure to properly measure the inner and outer dimensions. A remote controlled front door is useful when you would like more luxury or for people in need of help. Think of opening the front door for your grandmother's carekeeper.