This tedee set contains a smart locking mechanism, adapter for your old cylinder, and accessories.
Adapter
Tedee PRO
Recertified for the 3rd time! The smart tedee system: tedee Lock, tedee Bridge and tedee GO – AV-TEST Internet of Things Security Testing Blog
Tedee Smart Lock (review) - Homekit News and Reviews
How to install Tedee GO on Tedee cylinders: understanding the bar adapter
Tedee Pro Smartlock: Revolucionando la Seguridad y Comodidad – cefiba
Tedee PRO
Smart lock, Unlock the keyless life
Tedee PRO smart lock zilver met cilinderslot M&C Move kopen?
Smart lock Unlock the keyless life
How does a European adapter work?
Tedee GO - Smart Lock
Tedee PRO: installation on an European adapter