Anonymous Close Contact Tracing Journal

The Anonymous Close Contact Tracing Journal registers which SAFEDIs have come in close contact with other SAFEDIs – completely without recording any personal data. In case of a proven infection, those SAFEDI devices are notified, which according to the journal were in close contact with the SAFEDI of the infected person.

How it works

Each SAFEDI device comes with a unique SAFEDI-ID. To take advantage of the Anonymous Close Contact Retracing Journal, each user can log onto the SAFEDI App with this ID and the unique QR Code. Both are included in the package.

Data Transfer

The contacts stored in the SAFEDI are transferred anonymously via the SAFEDI App to the SAFEDI Cloud, where they are stored.

Secure Privacy: no data

To keep the contact journal updated, the device solely uses the SAFEDI-ID without any personal data: no name, gender, day, time or locations. All data other than the possible incubation period are automatically deleted.

Activating the Warning System

If a proven infection occurs, all SAFEDIs that were in close contact with the SAFEDI of the infected person are notified.


It takes place via a push notification containing necessary recommendations for action. Each person remains anonymous.


The benefit of using the Anonymous Close Contact Tracing Journal is only working if SAFEDIS are not exchanged among the employees. There has to be one SAFEDI per employee.


If two SAFEDIs are within the warning range for longer than three seconds, both SAFEDI-IDs will be saved in the respective close contact diaries. A Magenta flash and a short acoustic signal indicates the entry.

The close contacts can be viewed in the SAFEDI-Portal. Only the confidant chosen by the company has access to the SAFEDI Portal.

In the SAFEDI-Portal there is the possibility for the confidant to enter a password protected infection case, in order to activate the close contact analysis.

All close contacts with the affected infection case are listed in the password protected SAFEDI-Portal. Through this, the confidant contacts all SAFEDI-IDs that have had close contact with the infected SAFEDI-ID. For those using the smartphone app, all affected SAFEDI-IDs also receive a push notification.