Here is a nifty little gadget that turns your Android phone into a thermal imaging camera. The Fluke iSee TC01A has 256 x 192p resolution and detection range of -10 to 550C. It has a 25Hz frame rate for smooth video. It has over 10 color palettes for you to choose from.
You can use this gadget to inspect electrical components, find thermal leaks, and discover energy inefficient products.