This tedee set contains a smart locking mechanism, adapter for your old cylinder, and accessories.
tedee TBV10 Bridge Cylinder Installation Guide
Adapter
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tedee – Bridge
Smart Lock Tedee Go (Black) - TEDEE
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SMART DOOR LOCK TEDEE-PRO/SR Bluetooth, Tedee GERDA - Tedee - Delta
Which Tedee smart lock should I choose? Tedee GO and Tedee PRO, compared
How does a Nordic adapter work?