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Nest Protect


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Step up to the next generation of smoke detectors. The Nest Protect uses state-of-the-art sensor technology to accurately detect smoke and carbon monoxide in your home. If it detects something, Nest Protect sends a voice alert to tell you what's wrong in which room, and can even alert you via phone.

  • Reliably detects and alerts you to the presence of smoke and carbon monoxide in your home.
  • Speaks in a calm, clear human-like voice, identifying the location of the danger.
  • Provides smartphone alerts and battery status updates to help protect your home while you're away.
  • Tests itself automatically and lasts up to a decade.
  • Alarm can be silenced from your smartphone.
  • Controlled via the free Nest app.
  • Sets up in minutes with your iPhone, iPad or Android device.
Dimensions & More Info
  • 5 1/4" sq., 1 1/2".
  • 13.9 oz.
  • Includes six long-life Energizer® Ultimate Lithium L91 AA batteries.
  • Made in China.

Additional Information

  • Split-spectrum sensor detects fast- and slow-burning fires.
  • Self-tests its own battery and sensors – no more battery chirps.
  • Heads Up early alert detects minimal smoke, such as when toast burns.
  • Pathlight feature provides a light when you walk under it at night (light level is adjustable).
  • Steam check prevents an alarm during showers.
  • Works with the Nest thermostat and Nest indoor camera for enhanced features such as auto-shutoff and video playback.
  • Requires a Wi-Fi connection with internet access.
  • Requires the Nest app on phone or tablet with Android or iOS.
  • 10-year product lifetime.
  • Includes mounting hardware.

Shipping Information

UPS can deliver most in-stock items within 3–5 business days. UPS is unable to deliver to P.O. boxes.

Shipping Rates

The shipping rate varies depending on your order total and shipping destination. View Shipping Options and Charges.

Next Day Delivery

For an additional charge of $26 per address, we can expedite delivery to most destinations. This service is not available for some oversize items, items shipped directly from the supplier (including perishable and custom-manufactured items), out-of-stock items and items to be shipped outside the contiguous 48 states.

Orders received by 9:00 p.m. ET Monday through Thursday will arrive the next business day; orders placed Friday through Sunday will arrive on the following Tuesday.

Return Policy

At Williams Sonoma, we take great pride in the quality and craftsmanship of our products. Attention to design, materials, safety and construction are our priority. Upon receipt, please inspect your purchase and notify us of any damage; we will arrange for a prompt replacement.

If within 30 days, you are dissatisfied for any reason, you may return your purchase for a refund of the merchandise value. An original receipt or gift receipt is required for all returns and exchanges. Returns with a gift receipt will be refunded in the form of a Merchandise Credit for the amount indicated on the gift receipt. Returns with original receipt will be refunded in the original form of payment, cash and check refunds over $100 will be issued as a company check (may take 14 business days from time of request).

For all cutlery returns (knife sets, single knives, cutting boards, knife sharpeners and knife storage), please contact us at 888.922.4108 to initiate the return.

We cannot accept returns on monogrammed, personalized, special-order items, custom upholstery, food, items shipped direct from the vendor or on items damaged through normal wear and tear. Final sale items ending in .97 or .99 cannot be returned.

Made to Order and Final Sale Furniture items are non-returnable and cannot be cancelled once the order is placed.

For returns of items purchased from your Williams Sonoma Gift Registry, we will gladly provide a refund or exchange for the merchandise within 90 days of your event or within 90 days of purchase, whichever date is later. View Full Returns Policy.

Price Match Guarantee

Williams Sonoma Price Match Guarantee

At Williams Sonoma, we're committed to bringing you the best quality at the best prices.
If you find a lower price on any of our products, we'll match it—guaranteed. Click here for details.

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  • Rated 5 out of 5 by from Safety that works It works and very easy to setup and install. I would strongly suggest nest hire better phone customer support staff. The few I’ve spoken to sucks big time. The product itself I would rate very good to excellent. I highly recommend it.
    Date published: 2019-08-09
    Rated 4 out of 5 by from Great Product, but has limits Does not work with other nest products (nest secure) as an additional speaker. Very disappointing. Great CO2/smoke replacement and the night light is awesome. No midnight beeps. Turn off alarm with phone instead of getting a chair and trying to reach it (I burn a lot of food in kitchen). Truly love it. Wish they would allow it to work with nest secure as an additional speaker for alarms.
    Date published: 2019-08-08
    Rated 5 out of 5 by from Excellent Product This is not just a smoke/CO detector, it is a life saving device.
    Date published: 2019-08-08
    Rated 5 out of 5 by from Nest Protect We live in a condo and the alarm is loud enough to wake everyone during an emergency. The light is a nice feature which lights up the hallway as you walk by at night. The ability to deactivate or stop the alarm online is a nice feature.
    Date published: 2019-08-08
    Rated 5 out of 5 by from Surprised and Delighted I’ve been renting apartments and installing Nest thermostats and just leaving them in the apartments for years. I’ve been a software developer for nearly 20 years. And I’m really just so impressed with your hardware, and software integration, and focus on customer experience. Thank you.
    Date published: 2019-08-07
    Rated 5 out of 5 by from Upgrade from regular smoke alarm This Nest Protect woks with the Nest thermostat to shut your unit off if gas or fire happen in your house. This is extra security that you can count on. My old alarms were smoke alarms only. We use gas in several areas of the house and these units will let me know if there is a gas leak in my house. It will also tell you what room is occurs in. I would recommend the product to anyone for alarms
    Date published: 2019-08-07
    Rated 5 out of 5 by from Home Owner Excellent quality. Great instructions. Easily installed. Simple to use.
    Date published: 2019-08-06
    Rated 5 out of 5 by from So far so good Just installed these yesterday, but so far working well. I had help to set it up but looking at videos, doesn’t look too hard. 3 wired, and 1 battery - still waiting to set up the battery protect as it has not been delivered yet. But working well with nest app, easy to keep track of any alerts, etc.
    Date published: 2019-08-06
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