You can add tick marks to your gauge to display the values of the gauge’s scale. The TickMarks property has two attributes:
Minor TickMarks
Major TickMarks
You can configure both of them to display "ticks" at specific values. Major tick marks are usually larger than minor tick marks. They are configured to highlight every nth value on the scale.
The following screen shot shows a Radial gauge with major tick marks display at every 5th interval and minor tick marks displayed at every interval.