OuterRadius: PP.Point;
The OuterRadius property sets area of speedometer scale drawing with respect to speedometer center.
The example of using the OuterRadius property is given on the Example of Creating a Fuel Gauge Unit page.
When the OuterRadius is set to "150, 150", the speedometer looks as follows:

Change the value to OuterRadius: "50, 150", to get a speedometer scale that looks as follows:

See also: