Use the Celsius scale for temperatures displayed by the AMBTEMP and UPSTEMP fields. This is the default.
FIELD variable field-name field-suffix
Define a field to be displayed on the status screen.
variable is either a variable supported by the UPS software (see the output of upsc(8) for examples) or one of these special words:
MODEL - Show the UPS model in cyan
STATUS - Parse the status and use the appropriate color.
UPSTEMP - Display the temperature in the default scale.
UPSTEMPC - Display the temperature in degrees C.
UPSTEMPF - Display the temperature in degrees F.
AMBTEMP - Display the ambient temperature in the default scale.
AMBTEMPC - Display the ambient temperature in degrees C.
AMBTEMPF - Display the ambient temperature in degrees F.
field-name is what you'd like the column to be called on the page. This must be seen as one element by the configuration parser, so remember to wrap it in quotes if you need to include a space.
field-suffix allows you to add something after the value displayed in the cell on the page. This can be something like % or VAC.
The NUT (Network UPS Tools) home page: http://www.exploits.org/nut/