One upon a time we had a great flexible systems info system
you could create your own info pages and one had access to all sorts of sensors
I was very comprehensive but still easy to apply and use
Where is it ?
It never disaapeared. It is still the same: systemmonitor, accessible via start menu and terminal.
The package is named plasma6-systemmonitor.
There are quite a few system-info tools available that offer great features and are not DE-specific.
Are you referring to a tool that is DE-specific?? If so, you didn’t mention the DE you’re using.
…indeed 
I must say just by coincident I found the sensors.
a bit awkward to use
never mind have a great day
KDE as I said in above reply I found it awkward to deal with
What I was looking for (and initially could not find) was the health of my RAID1 system.
All good now
cheers