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HEAT LEAK DETECTING RAYGUN
The light beam changes to blue when it hits a spot of colder temperature (Photo courtesy of Black & Decker)
Soon, you'll be able to buy a sort of raygun to detect heating leaks in your home. Jessi Ziegler reports on a Thermal Leak Detector:
More on the Thermal Leak Detector
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Producer: Jessi Ziegler
Release Date: December 22, 2008
Running Time: :46