The PDU Autodiscovery process will automatically find any environmental sensors attached to the pdu such as heat, temperature, and humidity sensors.
There is also a specific autodiscovery job for environmental sensors from RFCode. You can set up RFCode discovery by navigating to Tools>>Autodiscovery>>RFCode.
When sensors are discovered, they are created with Asset records in Device42. If you navigate to Devices>>Assets>>PDU Sensors, you will see a list of all pdu-attached sensors discovered. If you navigate to Devices>>Assets>>RFCode Sensors, you will see a list of all RFCode sensors discovered.
In the example above, you can information about each sensor discovered including the type of measurement and the last recorded value.