So many options Of course you can solve this in more than one way. My solution would have been something along:
Kim ....... Available (Netatmo, Wifi)
but you can probably achieve the same thing with the sitemap image element and custom images showing the netatmo and wifi logo. Let us have a look at your result!
(Actually, in my very personal and unrelated opinion, the technical means of how you were found at home should not be of interest to the normal viewer of the sitemap - but yet again we are all nerds and love this kind of stuff )
Agree, For me its just a quick way to see if the network and the burgular alarm(netatmo) is up running instead of going into admin sitemap where I have all the details. I have the presence items inside the hallway frame in my sitemap, and then in the hallway I have that frame showing on a wall mounted tablet, so when I leave/come i just need to take a quick glance on it to make sure its working instead of browsing into the admin sitemap.
Given that is your use case, wouldn’t a simple Switch showing you that the alarm is up and running more appropriate? You can use a rule to integrate the Items that tell you when the netamo is up. I do something similar with this.
My UI philosophy is that it should be explicit and simple. To me, having to look at a presence field and interpret that to tell me whether the netamo is up is more complex and less explicit than a Switch telling me it is up or not. Let a Rule do the interpretation for me.
So, for me, I have a global online group that I put on my sitemap as Text. When all my devices are online it shows ON and all is good. If any device goes offline or hasn’t been heard from in too long of a time, the Group goes OFFand I then can bring up the admin sitemap to see what device it is and debug from there.