DS time radar

The DS Time Radar is a machine invented by Professor E. Gadd in Mario & Luigi: Patners In Time.

The prof. used this machine once in the game to look for Princess Peach after defeating Junior Shrooboid.

It seems that The DS Time Radar isn't a machine at all as it could be seem that Professor E. Gadd used the same Nintendo DS to activate the Hydrogush 4000.