The FLIR 15 professional-grade thermal imaging camera uses an advanced infrared detector to quickly scan large areas to reveal energy leakage, missing insulation, radiant tubing embedded in floors, and anywhere heat is present. The tool is lightweight, compact, and easy to operate, and its 2.8-inch LCD screen is large enough to provide detailed views of scanned areas and objects. Price: $2,995. www.goinfrared.com. 800-464-6372.