they have been proven ineffective, such as infrared thermometers that are claimed to detect cold spots in the middle of rooms when such tools are able only to measure the surface temperature of objects. Techniques with thermal imaging cameras, Geiger counters, electronic voice phenomenon, and EMF detectors are used with little or no explanation as to how the techniques have proven to provide evidence of ghosts or other entities. There are concerns that the devices are misused, such as the noting of Benjamin Radford's article for Skeptical Inquirer: "you may own the world's most sophisticated thermometer, but if you are using it as a barometer, your measurements are worthless. Just as using a calculator doesn't make you a mathematician, using a scientific instrument doesn't make you a scientist." Other media Spin-offs Ghost Hunters International A spin-off series premiered on January 9, 2008, featuring investigators Robb Demarest, Brian Harnois, Donna LaCroix, Andy Andrews, Shannon Sylvia, and Barry Fitzgerald (who appeared in the summer 2007 Ireland episodes of Ghost Hunters) since the onset, along with other rotating members from the TAPS family. The format is similar to Ghost Hunters but features investigations in various locations around the world. UFO Hunters Ghost Hunters producers Craig Pilligan and Tom Thayer released another paranormal investigation "special" titled UFO Hunters, (not to be confused with the show of the same name which aired on the History Channel), which first aired on January 30, 2008 but only aired for one episode. The episode followed New York Strange Phenomena Investigators (NY-SPI) co-founders Oliver Kemenczky and Ted Davis, along with paranormal researcher Dennis Anderson, as they investigated an alleged alien abduction case in Carteret, New Jersey and a strange fireball sighting in Normandy Beach, New Jersey. The format was similar to a typical Ghost Hunters episode, with most of the program dedicated to the investigation and wrapped up with a review of findings and evidence that was gathered. The pilot episode was reformatted and returned on December 13, 2008, as a special called Ny-Spi Investigates on Investigation Discovery, but was not picked up as a continuing series. Ghost Hunters Academy On October 23, 2008, TV Guide reported that Syfy would launch a spin-off of the show called Ghost Hunters: College Edition, which would feature "co-eds" in the ghost hunter roles.<ref>{{cite news|url=https://www.tvguide.com/News/Ghost-Hunters-College-28608.aspx|title=Ghost Hunters Head to College|journal=TV Guide|date=October 23, 2008|access-date=October 24, 2013}}</ref> The show was later named Ghost Hunters Academy and