As a follow up to their revolutionary thermostat, Nest tries to reinvent the smoke detector
The new device is a fire, smoke and carbon monoxide detector that talks to you, lights your way down dark corridors and gives you a heads-up before setting off a piercing alarm. The device lets users wave to stop the alarm before it starts — for instance, if someone has opened an oven and let out smoke but there's no fire risk. If multiple detectors are installed in a home, they communicate wirelessly with each other. At bedtime, a circle at the center of the device glows green to show there is no fire danger in the house. Nest Protect even has a humidity sensor, which Nest hopes will be used in the future to detect the difference between smoke and steam.
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