Hi Michael,
Thank you for using Syncfusion products,
We have created a sample based on your requirement using SfCircularGauge. Based on the current implementation, behavior of range pointer cannot be achieved by scales. If we change the sweep angle of the primary scale, ticks and labels will reposition according to its. So, we have made a work around to achieve range pointer behavior with scales. Please find the sample from below location

In the above sample, we have added another scale. Based on the value from primary scale, sweep angle for scale 2 will be calculated. So, it will look like Range pointer.
Please let us know if you need further assistance.
Regards,
Ashwin