RIPE Atlas Anchor V2
If you find this device and are unaware of its purpose, please consider leaving it where it is. It is called a RIPE Atlas anchor and it is an active measurement device that is helping to build the largest Internet measurement network ever made, in order to provide real-time data about the Internet's connectivity and reachability.
It is managed by the RIPE NCC and it does not provide us with any information whatsoever about the content of websites visited or any other private information about the host's network.
If you want to send a description of where you found the device to atlas [at] ripe [dot] net, we will try to provide you with some information about how and when this device was installed, and can answer any other questions you may have.
We invite you to learn more about RIPE Atlas.
The RIPE Atlas team