That unit has 4 sensors and 5 variable speed fans and that can shut off if not needed. If the temp OID and a index value you could just choose one of those.
What OID are you using?
I am using 22.214.171.124.126.96.36.199.188.8.131.52.3
It gives me values of 40,39,36,29 all on the same line.