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Google Nest Protect - Smoke Alarm - Smoke Detector and Carbon Monoxide Detector - Battery Operated , White - S3000BWES

  • Based on 13,964 reviews
Condition: Used - Like New
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Arrives Monday, Sep 8
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Style: Battery


Features

  • Smoke detector and carbon monoxide detector that speaks up in a friendly voice to give you an early warning when there's smoke or CO in your home
  • Split Spectrum Sensor looks for both fast burning and smoldering, and tells you where the danger is
  • Get phone alerts so you know something's wrong even when you're away from home[1]
  • CO detector looks out for carbon monoxide and tells you where it's located
  • With App Silence you can silence the smoke alarm with your phone in the Nest app when there's only a little smoke
  • No chirps to tell you the battery is low; Nest Protect tests its own batteries and gives you a Nightly Promise when you turn off the lights so you know everything is working
  • A Light in the Dark: Usually Nest Protect has its light turned off but when you walk underneath it Pathlight can light your way.
  • The Nest smoke and carbon monoxide alarm has sensors with a 10-year lifespan to help keep your family safe for up to a decade
  • With Safety Check you can test all your smoke and CO alarms with just a tap and get a full report once the test is done
  • Google Nest Protect (Battery) packaged with a Google Seal for Online Marketplace
  • Know from anywhere. Connect Nest Protect to Wi-Fi and it will send an alert to your phone if the alarm goes off or the batteries run low.
  • Tells you what and where. It speaks up to tell you if theres smoke or CO and where the problem is, so you know what to do. Connectivity: Bluetooth 4.0 LE, Wi-Fi 4 (802.11n)
  • App Silence. Nest Protect is the first alarm you can hush from your phone. Simply walk to the Nest Protect that noticed the problem and open the Nest app.
  • Split-Spectrum Sensor. In an emergency, seconds count. Nest Protect uses two wavelengths of light to look for both fast and slow burning fires.
  • Heads-Up. Get a friendly voice alert so you can handle burning toast before it becomes a burning toaster.
  • 10-year carbon monoxide sensor. Carbon monoxide is odorless, invisible and deadly. When theres CO, Nest Protect tells you where its hiding.

Description

Google Nest Protect (Battery) packaged with a Google Seal for Online Marketplace.

Brand: Google


Style: Battery


Power Source: Battery Powered


Color: White


Product Dimensions: 1.5"D x 5.3"W x 5.3"H


Item Weight: 1 Pounds


Alarm: Audible


Sensor Type: Photoelectric


Global Trade Identification Number: 79


Material: Plastic,Stainless Steel


Brand: ‎Google


Style: ‎Battery


Power Source: ‎Battery Powered


Color: ‎White


Product Dimensions: ‎1.5"D x 5.3"W x 5.3"H


Item Weight: ‎1 Pounds


Alarm: ‎Audible


Sensor Type: ‎Photoelectric


Global Trade Identification Number: ‎79


Material: ‎Plastic,Stainless Steel


Number of Items: ‎1


Manufacturer: ‎Google Nest


UPC: ‎854448003679


Part Number: ‎S3000BWES


Item Weight: ‎1 pounds


Item model number: ‎A11


Batteries: ‎6 Lithium Metal batteries required. (included)


Is Discontinued By Manufacturer: ‎No


Size: ‎1


Shape: ‎Round


Voltage: ‎1.5 Volts


Item Package Quantity: ‎1


Included Components: ‎"Six long-life batteries (Energizer® Ultimate Lithium “L91” AA)


Batteries Included?: ‎Yes


Batteries Required?: ‎No


Battery Cell Type: ‎Lithium Metal


Date First Available: May 13, 2015


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 8

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

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Top Amazon Reviews


  • Reliable Safety with Smart Features
Style: Battery
The Google Nest Protect is an excellent smoke and carbon monoxide detector. Setup was quick and easy, and the app integration gives me peace of mind, even when I’m away from home. I like how it speaks clearly to tell you what and where the issue is, rather than just beeping. The night light feature is a nice bonus, and battery life has been solid so far. ✅ Pros: Easy installation and setup Clear voice alerts with location App notifications when you’re away Sleek, modern design Night light feature adds convenience ❌ Cons: A bit pricier than standard detectors Bottom Line: A top-tier smoke and CO detector that combines safety, convenience, and smart technology into one dependable device. ... show more
Reviewed in the United States on August 10, 2025 by Kenny Campbell

  • Easy installation, absolutely SPECTACULAR user interface!
Style: Battery
A year ago, I purchased a first generation Nest protect (battery only), but didn't install it because one of its features was disabled by the company (waving to silence alarms) and all the detectors in my home were integrated by a/c current. Two weeks ago, just as we were preparing for a trip away, the smoke alarm near the entry way began chirping and beeping (two different sounds). We were able to silence the chirp with a new 9 volt battery, but the only thing that would stop the beeping was to turn off the power to the a/c circuit to which it was connected. Even totally removing the malfunctioning unit didn't silence the beeps! Descriptions of our dilemma provided us no clues, but eventually, we contacted telephone support for the unit's manufacturer. A REAL LIVE PERSON with concern and humor answered, listened to me describe our problem, then responded, "honey, the ceiling can't beep! Do you have a CO monitor close by?" We did. She then told us that the beeping was the "end-of-life" signal coming from the CO monitor plugged in at ground level 10 feet away. Sure enough, unplugging it silenced the beeping. Then she told us that our other CO alarms and all of our smoke detectors were well beyond their intended lifespan (all manufactured in 1992) and all of them must be removed, even though they all displayed their "AOK" green LEDs and passed their aural tests). (We purchased this home 2 years ago, paid several hundred dollars for a home inspection, and nothing in the inspector's report mentioned that our detectors were beyond their expected usable lifetime). Clearly, we needed protection that gave us more feedback about their normal and abnormal performance. Extraordinarily satisfied with our Nest thermostat, I decided to purchase Nest Protects for the rest of the house. I installed the 1st generation unit to replace the one I'd already removed. To do so, I needed to drill some holes into the ceiling because the holes for its mounting plate didn't line up with the junction box in the ceiling, and two of them required a power drill in order to penetrate the 2 x 4 ceiling framing. We left on our short trip knowing that we had at least one working device and several more to install when we returned home. When we returned, we unpacked the new, a/c powered units, lined them all up within 20 feet of the 1st generation battery operated unit, and began the ID/registration process. The thought that's gone in to the user interface for this device immediately became obvious, when a quick routine of scanning the code on the back of each device led to prompt addition of it to our existing network of Nest thermostat and an increasing number of registered Nest Protects. Physical installation went just as quickly, as did an initial "checkup" initiated from my iPhone. I did spend a few minutes reading the manual, and learned that 10 years from now, when units require replacement, they'll alert me both verbally when I'm in their proximity, and by sending me emails that they're in need of replacement! Another plus: the thermostat in our 2 story home is located in a small blind corridor where it cannot "see" traffic through the rest of the home. Consequently, when we're asleep at night, our Nest Thermostat decides we're away, and the temperature drops to the "auto away" setting during the night. We save big on our power bills but it gets a bit cool in the house! Now, with the Nest Protects "talking" to the thermostat, we awake to more comfortable temperatures. I have only two concerns about these devices. One is that, in a very large home, the "checkup" testing of individual devices may overlap others in time. That's not a problem in our relatively small 2 story house, but in a large home the overlaps could make it difficult for one person to confirm that all the units are working. Even that's not a real issue, because the units test THEMSELVES when we're not present and send us email confirmation that they're all functioning. The other concern is that these products were born in the minds of people who worked at Apple, who clearly learned their lessons well while there. They are attractive, communicate clearly to their owners, and guide their owners with an outstanding user interface. Unfortunately, the company has been purchased by Google, and it's entirely possible that the business goals of these two no-longer-friendly companies will deprecated their future as anchors of a "connected home" where "works with Google" will mean "won't work with Apple." ... show more
Reviewed in the United States on December 21, 2015 by J. Robertson

  • Emails Your if Alarm Event Occurs. Peace of Mind When Away From Home.
In 2014 I purchased and installed 6 Nest Protect Ver 1.0's on a remodeling job I was working on. They have been working well and have had no issues since. I just purchased an equal number of these Ver 2.0's for my own home and love them. The entire process has gotten much easier and more refined. The app has certainly gotten better in 2 years. I like the way the menus and user interface works and looks in the App. As soon as I start it up I can see the status of my system, perform a self check, look at the history of the readings and actions of the detector and various other useful actions. It runs well on my iPhone 7 and I've had no issues with the App so far. Installation of hardwired detectors took about an hour. The round mounting plate fits well over round ceiling boxes or rectangular single space wall boxes equally well. There are various screw hole spacings on the plate to accommodate different sized electrical boxes. The kit comes with 3 wire nuts and 4 screws. The screws are unlike and that I have encountered before and look very modern and nice. (not that you will be seeing them after installation). One wire nut for the hot (black), white (neutral), and one to cap the unused signal wire if you have it. The pig tail that comes with the Protect is about 6 inches long and is the perfect size. I like the way the Ver 2 Protect has a built-in microphone to self test it's own alarm speaker. That seems like a good self checking feature. I do wonder how many speakers have ever failed in smoke/CO alarms. I have never seen nor heard of one fail in that respect for the over 25 years and hundreds of homes that I have worked on. I am sure there is a statistic for that however. I hope the microphone is never used for privacy violations. I got the Protects because I wanted a smoke/CO detector that would email me if there was an alarm so that I would know when away from home. I looked but there really aren't any other competitors currently with similar device. I was hoping to get one that was Apple HomeKit enabled. I wish the Nest was HomeKit enabled, but as Google has positioned itself as a major competitor to Apple I don't guess that will be happening soon. Maybe they will add that when some competition does come to market. Right now Nest is still the only major option. I tried a couple of First Alert One Link detectors. Both the Battery and Hardwired versions failed miserable within 8 months on installation. This is a wonderfully designed device. I like everything about it. The path night light has proven to be a very useful feature. It gently lights up the pathways at night when motion is detected. I love that feature. The design aesthetics really go well anywhere you put it. It looks way better to me than any other on the market. The circle LED ring that changes colors based on state is very nice. (Blue, Green, White, Red). The voice guidance and room name announcement are excellent features. It has a pleasant and natural sounding voice. I really do think this a complete package. I wonder if there any other features that could be added. If there are I'm sure the designers and engineers at Nest are working hard to think some up. It is a 2nd generation product now and has little to no bugs. If only it was HomeKit enabled it would be a complete package for me. I'm still giving it 5 stars. ... show more
Reviewed in the United States on October 8, 2016 by Earth Spirits

  • Peace of mind fire, smoke and CO2 detector with WiFi capability
Style: Battery
Trust and reliability are what I value from Nest products. I know there are other products equivalent to the Nest smoke and CO2 detector but I have used Nest for over 15 years and I am comfortable with peace of mind that my home and family are protected. I like the notifications to my cellphone when the detector is doing its maintenance check. I like the soft light that comes on at night whenever I’m in proximity to the detector. I couldn’t ask for more value than what I have. ... show more
Reviewed in the United States on June 22, 2025 by NY DAD IN NM

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