The Eco Monitor is the first LCD that draws zero watts, as opposed to as many as six, while in "sleep" mode. Instead of using an energy-consuming processor to decide when to wake the display, Fujitsu-Siemens created a circuit that automatically turns on when zapped by an electrical pulse from the keyboard. Fujitsu-Siemens ScenicView Eco Monitor $620; fujitsu-siemens.com
Every month in Popular Science we feature 12 must-have products. The goods might range from skateboards to dental floss to laser televisions, but they all share one thing—a tech innovation that's never been used in such a way before. Here, we've collected over 100 of our top picks.