The Gizmonic Institute Graphical Automatic Hyper-Enhancement of Reality through Teleportation and, uh… Zoom, or GIGAHERTZ, is a device for crime scene investigation invented by Joel Robinson. Introduced in comic #110, the GIGAHERTZ enhances crime scene photographs, by going back in time and taking better photographs.
As a simple temporal camera, the GIGAHERTZ saw little use. It wasn't until Trope-tan repurposed the device at the end of Take That Us that it became really useful. The GIGAHERTZ was converted into a general-purpose time machine. The next chapter, Wibbly Wobbly, Timey Wimey, revolved heavily around the GIGAHERTZ-as-time-machine.