In the Workbench Project Explorer, expand your project, then the AssetWorX node, then the Product configuration node, then System properties, and then click on Units.
To define units for the temperature, click on the Units node. On the Units tab you can define the following information for units that are used at your corporation: A name for the unit, the name to be displayed for the unit, and a description of the unit. For more information, refer to Defining Units of Measure.
Units Tab under the System Properties Node
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