There’s no point in beating around the bush: If you’re looking for a smart smoke and carbon monoxide system, the Nest Protect should be at the top of your list.
Now in its second generation, the Nest Protect doesn’t just work well, it’s extremely easy to set up and use. At its heart, it’s a traditional smoke alarm like the hockey pucks you’re probably used to: If smoke or CO is detected by the device, a loud alarm sounds and, in the case of the Nest Protect, a voice alert tells you what hazard has been detected. To turn off a false alarm, press the button on the top of the Protect, or use the app to disable the siren. (This capability can be turned off if you’re worried about remote or false dismissals of alarms.) The ring around the control button lights up to serve as a nightlight—and to assure you that the batteries are up to snuff.
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