Dragon Ball · Techniques
Dragon Radar
ドラゴンレーダー
The device invented by Bulma that detects the Dragon Balls' signal and shows their position. It is why Bulma meets Goku: the radar leads her to Mt. Paozu, where the boy keeps the Four-Star Ball.
Over the series Bulma builds several versions, up to those for GT's Black Star Dragon Balls.
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