For Digital Key, your Site is required to have updated IQs, as well as BLE-enabled locks.

SALTO BLE-enabled locks that support Digital Key: XS4 Original, XS4 One, XS4 Mini, XS4 Wall reader, XS4 Keypad, XS4 Wall reader with keypad.

Please note, that in some cases for older locks, a firmware update might be required.