That's great that ghost hunters use high tech tools but from what I can tell (see Ghost Hunters on SciFi) the hunters really have no clue when it comes to actually running an experiment. Has any validated that an EMF reading is a sign of paranormal activity? Of course not because its BS. What's worse is when they use it indoors surrounded by electrical equipment. Then theres the IR temp gun they use. They point it as if it reads the temperature of thin air but what they are really doing is reading surface temperatures of the walls/windows etc. Kinda sad...