The same guys behind the popular Nest Thermostat have introduced the Nest Protect,
a device that brings a sense of beauty to an otherwise neglected
object, the smoke detector. The innovative smoke alarm and carbon
monoxide detector will still keep you safe without driving you crazy. It
features voice notifications (giving you a better sense of how to
respond to the alarm), a glowing status ring (changes color letting you
know if everything is ok or if there is a potential problem or
emergency), a pathlight function (automatically lights your path at
night) and a hands-free button for false alarms(simply wave your hand a
few times toward Nest Protect to silence it). All this can be controlled
via your smartphone or tablet, plus it interacts with the Nest
Thermostat. watch the video