You gain the atompunk and occultic technological knowledge of the Ghostbusters across the movies, books, television series, and video games, including backpack-sized particle accelerators capable of disintegrating minor ghosts, potentially devastating proton grenades, P.K.E. Meters which can be used to measure psycho-kinetic energy in order to detect and scan paranormal entities, Ecto Goggles which can be used to see the paranormal even when it is invisible, Containment Units capable of trapping and storing paranormal entities, Dark Matter generators capable of collecting and launching Dark Matter particles, dimensional technology capable of opening, stabilizing, and closing dimensional rifts to the Netherworld and potentially even other worlds, various uses of paranormal substances such as ectoplasm as well as matching Slime Blowers, and an assortment of other technology useful for countering the paranormal and in general such as the Alpha Wave Generator capable of recording dreams.
As a bonus your prototype inventions have a tendency to exhibit their danger in comical ways before causing personal harm.