Emf Sensor

One of the most frequent equipment used by paranormal teams is an electromagnetic field detector, or EMF detector. While it may sound like something out of a campy sci-fi movie, it's actually a handy tool that electricians use to find the source of excessive electromagnetic radiation in a room. The source is usually something like appliances or even a cell phone, but if there isn't a visible source and you have a lot of electromagnetic radiation, researchers believe something paranormal is tampering with the electromagnetic fields!