Would you like to get a quick preview of the gauge you are using in the BI Dashboard Indicator? Just tap the 'Select ...' button to the right of the 'Gauge type:' dropdown box.
There are then images of what these gauges look like, such as the 'Dials' category below:
Also, if you select the 'Dynamic Gauges' category you will be able to edit the height/width of the gauge, display in 3D, the data format of the associated measure, and whether to orient the gauge horizontally or vertically: