Which OIDs for quick temperature script?

I’d like to get some temps showing for a FreeNAS box, and I’m planning on outputting the results from sysctl (here’s an example).

What OIDs should I output those results on for them to be discovered? All the examples are using other monitoring solutions where the graphs are a bit more manual, and if there’s a way to do this without modifying LibreNMS I’d rather go that route.