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Psycho-Kinetic Energy( PKE meter). A PKE meter is a hand held device, used in locating and measuring Psycho-Kinetic Energy, which is a unique environmental byproduct emitted by ghosts.
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The Ectomobile is a 1959 Cadillac Miller- Meteor limo-style end loader combination of a car an a hearse.
The Ghostbusters II played on June 16, 1989.
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The Proton Pack. It is an unlicensed nuclear accelerator which fires a proton stream that polarizes with the negatively charged energy of a ghost allowing it to be held in the stream while active.
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Peter Venkman is the most prominently featured Ghostbuster in the films. He was portrayed by Bill Murray in both the live action films, and was voiced in the animated series first by Lorenzo Music and then by Dave Coulier. Peter is one of three doctors of parapsychology on the team, though he also holds a Ph.D.