The Kickstarter project consists of an antenna that you plug into the headphone jack of your iPhone, iPad or iPod Touch, and pair with a free app to bring it one step closer to the Tricorder.
EM radiation stands for “electromagnetic radiation” [and] is a wave-like form of energy like microwaves, visible light and x-rays. EMF stands for “electromagnetic field” and is the near field part of EM radiation. Any time you have electrons moving through wire (like in the power supply of your appliances), it generates an electromagnetic field. Mr Ghost detects this field.
So if you’re not really sold on the whole “ghost hunting” thing, you can use it to see how much EMF your devices are giving off — but we reckon that there’s far more fun to be had than just waving it over your TV.
There really is a Kickstarter for everything.