A comment
Installed a little over a month ago, the manufacturer’s invoice lock KERBEROS 112 series. In addition to the lock, 5 sets of ordinary keys and one so-called mounting key were attached.
On this manufacturer, I did not immediately establish my choice, re-read a huge amount of information, watched various videos with burglary resistance tests on the Internet. After which I decided to take KERBEROS, he arranged me in everything - reliability, quality, appearance and ease of installation.
The lock was packed in a box, inside of which there were, in addition to the lock, screws, a reciprocal level a guide for a key and an overlay for a door.
I couldn’t install the lock right away, the thing is that I hadn’t encountered such work before. But in fact I can say - the work is not complicated, it took me about 6 hours in total.
The lock is good, top-class burglar resistance, works without problems at low temperatures and high humidity.