https://www.bluescan-bluetooth-tracker.com/
BlueScan - Bluetooth Scanner
Find your lost AirPods, headphones, and more with BlueScan, the Bluetooth scanner app.
bluetoothscanner
https://kuschmann.net/project/kabeltester-bluescan-compact-96-192an/
Kabeltester blueSCAN compact 96 / 192AN - Kuschmann Kabeltechnik
kabeltestercompact