A ghost-hunter's tech toolkit

Before you start the next great poltergeist hunt, check out our skeptical look at what ghost-hunting gadgets supposedly reveal.

Infrared Thermal Imaging Camera



Infrared thermal imaging cameras show heat and temperature fluctuations. They display supposed “cold spots” that ghost hunters use as proof of paranormal presence. However, like the cold spots that digital thermometers find, the low-temperature areas these cameras pick up could be the result of convection, wind chill, poor insulation, or an air leak.

Image: Courtesy of First Look Home Inspection

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