We do not currently offer an installation service: your Keliss lock is fitted by your own locksmith or installer.
The default code
Many manuals give a factory code (often 123456) that opens the lock until the first administrator is registered: it must be changed straight away, at commissioning.
Tools
Cross-head screwdriver, drill (with safety glasses), tape measure, pencil and spirit level. Some models also need a tool to cut the spindle and the cylinder to the door thickness.
Who does it
The lock is fitted by your own locksmith or installer, and several manuals expressly recommend this (Astra AT011 and Cipher). Before ordering, tell them the model you have chosen and ask them to check the thickness, the lock type and the opening direction of the door.