Listen to this awesome podcast (embedded at the end of this post) from the guys at HowStuffWorks discussing ghost hunter equipment in a real life, I-actually-understand-electronics-and-science way. Oooooh, this made me sooooo freakin’ happy.
Here is a text article to go along with it: Ghost Detecting Equipment
I found this goodness via Ryan Johnson’s article on Skepticblog. Let me quote from him quoting them:

