Regarding the FieldFox, is there a SCPI string to query Part Number, Serial Number of the USB connected power sensor ?
Such a command does not exist in the current firmware. The command will be available in a future firmware release, at least on the A.09.xx branch, which runs on the new CPU (CPU2). Not sure if it will be available on the A.08.xx branch, which runs on analyzers with the original CPU. The new firmware will also support Keysight's LAN power sensor.
Once it is available, the command is:
DISPlay:MODel:DATA? ! Query only. Return model number string, serial number string
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