Seismograph

The Seismograph, also known as an "Earthquake Tracker", is one of Gary's inventions. It tracked the Earthquake Driller in Secret Mission 8 and it was seen again in the Gadget Room.

Trivia

It only appeared in Secret Mission 8.
Not much is really known about the Seismograph.
The parts used to make it are still unknown.
It is another invention by Gary.
Unlike most of Gary's inventions, the Seismograph does not have a 'thousand' number at the end. (e.g. Seismograph 3000)
Seismographs are used in real life to predict the likelihood of an earthquake and how hard it will hit.
It has not been seen since Mission 8.
The recycle bin on the seismograph seems to be bottomless as it never overflows even if there is a lot of paper going in.