| Buttons | Function Description |
| TRANSMIT | With the TRANSMIT key switched ON, the “XMIT” icon appears in the lower-left corner of the display, signifying that the unit is in Auto Transmit Mode. |
| RECALL | The RECALL Key recalls the last ten velocity readings that were measured. |
| PEAK | With the Peak display enabled, the PEAK icon illuminates. The highest speed of each ball will then appear in the main window. When disabled, the real-time speed of each ball is shown. |
| MENU | Navigates the Menu System to choose a Menu item to be changed. |
| SELECT | Decreases the setting for a chosen menu item. |
| ON/OFF | ON/OFF Key. |