NAME: Mr. Ghost iPhone EMF Detector
WHAT DOES IT DO: This nifty gadget plugs into the headphone port of your iPhone or iPod touch, and lets you check for potentially spooky electromagnetic radiation via a companion app.
HOW MUCH: $20
FUN FACT: Really, you can use it to check the levels of electromagnetic radiation sources in your home or office — things like your TV, clock, gaming system.
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