I did the translation to English on relevant parts only
This is a table that informs a user about a Tag (Physical device) status, and now we are changing the "Last transmission" column for an "Activity/No Activity" column.
Due to our user feedback, we realized they did not use the Last transmission, and we are looking to communicate if the device is alive or not.
So for a quick test, we want to use an icon to represent "Activity/No Activity".
So far I have a few options (see below) but I am not convinced at all.