Code Scrambling with Key Override:
After opening or closing the lock, the dials automatically scramble hiding the secret code. The overriding key opens the lock without having to know the code (if the code is forgotten). For instance, service people can open the locker �to exchange towels, yet the code remains secret.
Each lock comes with instructions explainging how to set personal code.
For thin materials such as metal, glass, etc. please see back plate adapter below.