'Which temperature does the thermal zone temperature sensors measure?

I have created a powershell script that gets the temperature information using the typeperf "\Thermal Zone Information*()\Temperature" command and have parsed the result into a json string as follows:

{
    "TZ.EXTZ":  45.850000000000023,
    "TZ.GFXZ":  -0.14999999999997726,
    "TZ.CHGZ":  -273.15,
    "TZ.LOCZ":  -273.15,
    "SB.PCI0.LPCB.EC0.HEPZ":  -71.149999999999977,
    "TZ.BATZ":  33.850000000000023,
    "TZ.CPUZ":  63.850000000000023
}

I'm guessing TZ.CPUZ is the cpu temp but about the others I'm not sure what temperature do they measure. By the way I have converted the Kelvin values into Celsius.



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