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Nest Protect smoke and CO alarm

Nest Protect
The smoke alarm that thinks, speaks and alerts your phone.
The smoke alarm that other alarms look up to.
Thinks before it speaks.
Nest Protect has a friendly human voice that gives you an early warning. That way you can handle burning toast before it becomes a burning toaster.
Tells you where the danger is.
And when one speaks, they all speak. So the alarm in your bedroom can tell you there’s smoke downstairs.
The smoke alarm that other alarms look up to.
Thinks before it speaks.
Nest Protect has a friendly human voice that gives you an early warning. That way you can handle burning toast before it becomes a burning toaster.
Tells you where the danger is.
And when one speaks, they all speak. So the alarm in your bedroom can tell you there’s smoke downstairs.
It’s time to expect more from your smoke alarm.
Nest Protect has been redesigned from the inside out. It has a Split-Spectrum Sensor and tests itself automatically. It’s also the first home alarm you can hush from your phone without any extra hardware required. And it tells you what’s wrong and can even alert your phone.
It’s on your ceiling. And on your phone.

App Silence

Silence alarms with your phone, not your tea towel. If everything’s under control and there’s only a little smoke, silence the alarm from the Nest app.

Sees both fast and slow-burning fires.
The foam and particle board in much of today’s furniture make fires burn faster. Technology should keep up. The Split‑Spectrum Sensor uses two wavelengths of light to detect smoke from both fast-burning and smouldering fires.
In the 1970s, it would take about 30 minutes for a fire to take over a room. Today, it can take less than 5.
Source: Underwriters Laboratories
10-year CO sensor.
Carbon monoxide is poisonous but you can’t see it or smell it. That’s why Nest Protect has the most accurate type of carbon monoxide sensor available. We also improved our carbon monoxide sensing algorithm.
10-year CO sensor.
Carbon monoxide is poisonous but you can’t see it or smell it. That’s why Nest Protect has the most accurate type of carbon monoxide sensor available. We also improved our carbon monoxide sensing algorithm.
Thoughtful, not annoying
Tests itself You’re supposed to test smoke alarms monthly. But most people don’t. So Nest Protect checks its batteries and sensors over 400 times a day. And it’s the first alarm that uses Sound Check to quietly test its speaker and siren once a month.
Lights your way If you need a glass of milk in the middle of the night, Nest Protect lights up as you walk underneath it. Pathlight is one of our customers' favourite features, so we've made it better and brighter.
Steam is not smoke Has your alarm ever yelled at you for having a shower? Nest Protect comes with Steam Check. It uses custom algorithms and a humidity sensor to look for steam so that you can enjoy a nice, quiet shower.
Count sheep, not chirps.
No one should be woken up by a low-battery chirp at 2 a.m. When you turn off the lights, look for a quick green glow. That’s our Nightly Promise. It means all your Nest Protects have tested themselves, the batteries are good, and there won’t be any chirps. Sweet dreams.
Look for the light ring.
In addition to its voice, Nest Protect uses colours to communicate. And we’ve given the new Nest Protect a brighter light ring so it’s easier to see in an emergency and better at helping you see things in the dark.
Nightly Promise
Nest Protect constantly monitors its sensors and batteries. A quick green glow when you turn off the lights says that everything's working.
Pathlight
When you walk under Nest Protect at night, it will light your way. You can choose different light levels or turn Pathlight off entirely in the app.
Emergency
When smoke or carbon monoxide reaches dangerous levels, Nest Protect sounds the alarm, pulses red and tells you where the emergency is.
Look for the light ring.
In addition to its voice, Nest Protect uses colours to communicate. And we’ve given the new Nest Protect a brighter light ring so it’s easier to see in an emergency and better at helping you see things in the dark.
Nightly Promise
Nest Protect constantly monitors its sensors and batteries. A quick green glow when you turn off the lights says that everything's working.
Pathlight
When you walk under Nest Protect at night, it will light your way. You can choose different light levels or turn Pathlight off entirely in the app.
Emergency
When smoke or carbon monoxide reaches dangerous levels, Nest Protect sounds the alarm, pulses red and tells you where the emergency is.
1
Mobile alerts require working Internet and Wi-Fi.
2
Nest Protect’s sensor lasts up to 10 years from the date of manufacture.