| Speed gauge |
| Speed reader? |
| Speed trap tool |
| Speeder catcher |
| Trooper's device |
| Trooper's weapon? |
| Speed trap device |
| High-speed measurer |
| Speedster's undoing |
| Speed trap equipment |
| Traffic cop's device |
| Trooper's speed-checking device |
| It answers the question "Do you know how fast you were going? |