This would be the holy grail for any kind of modern "ghost hunter", it does electromagnetic, thermal, radiation, infrared.. etc..

Doesn't matter if they don't have a fucking clue how it actually works, it'll be a status symbol for the disenfranchised-with-reality crowd who love to play scientist.
I used to be one of those people interested in ghost hunting, until I got more involved with it, and saw the sheer amount of wishful thinking, ignorance, and general lack of logic applied.