Measures are sections that determine what information Rainmeter should retrieve. Within a .ini file, names for measures must be unique and they must not have spaces. The meters use these section names to bind to the measures and display the results.

Note: Some meters require a range of values (BAR, HISTOGRAM, etc) so that they can display the measured value as relative to the minimum and maximum values. Not all measures are able to calculate the minimum and maximum value automatically so you need to do that manually with MinValue and MaxValue.