Your account was used to sign in on this device

if i connect a new device to Teamviewer i become the message
"Your account was used to sign in on this device recently" in a email: TeamViewer Sign In Confirmation <SignIn-noreply@teamviewer.com>
The problem is now how can I identify the device, before I klick into Add to trusted devices
Also after open the Add to trusted devices I can not see what is the identity from the device.

Robert