A Detector is a type of Psy-Human that are able to see Psy-Energy and thus see Psy-Humans. They are considered an Special type. Detectors can see auras around Psy-Energy, and see the aura in places Psy-Humans have recently been and on Psy-Humans themselves. Unlike other Psy-Humans, they do not use up energy when they use their powers, as their power are always on. Also, Detectors, along with Negators, are one of the 2 types that often side with Hunters instead of get killed by them.