Global Dragon Radar

Global Dragon Radar is a Dragon Radar that takes the form of a giant map of the Earth, and is capable of revealing the location of a Dragon Ball.

Overview
The Red Ribbon Army have one in their command room, which is where they are able to keep track of Goku. Theirs can only give a general idea of where the Dragon Balls are, rather than the exact spot of where the Dragon Ball is, unlike Bulma's radar.

Also in the Red Ribbon Army Saga, the Pilaf Gang has a Global Dragon Radar in their Flying Fortress, but it is destroyed along with the fortress when they are attacked by Colonel Silver and his men. Later, in the King Piccolo Saga, Pilaf's gang has an upgraded version of the Global Dragon Radar in their airship, which is shaped like a globe in order to minimize map distortion; they use this radar to help King Piccolo and his sons find the Dragon Balls.

In Dragon Ball: Mystical Adventure, Master Shen has Pilaf, Shu and Mai build one for him.

In Treasure Planet, Priest Seto has a Global Dragon Radar in Prince Atem's palace on New Planet Plant.