Your Danalock was engineered for easy installation.
Depending on your door type, you will either have to attach a mounting plate to the door or replace your locking cylinder with the one that comes with the lock or that you buy separately.
Your Danalock package will normally contain the necessary parts to install the Danalock in your region, however, since you may buy it online you could buy a version made for another lock case than yours.
Click on the links below to find video guides and installation instructions.