EU version. Whether for the entrance door and side doors at home, the holiday flat or office and practice rooms: With the latest generation of the secuENTRY easy electronic door lock, Burg-Wächter combines state-of-the-art technology with maximum convenience. Because that's exactly what users expect from a modern smart lock. Ideal for new doors, but also for retrofitting to existing doors. The electronic door lock can be installed in just a few minutes, making it suitable even for rented flats. You can simply take it with you when you move house. Thanks to modern Bluetooth 5.2 technology, the Smartlock is secure and modern. When it comes to security, the Smartlock impresses with the modern Bluetooth 5.2 standard. The technology is extremely energy-saving and secure thanks to AES encryption. The range of the Bluetooth signal is around four metres. This means that there should be no greater distance between the keypad and the door lock.