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Google Nest Protect 2nd Generation Smart Smoke/Carbon Monoxide Wired Alarm, Hardwired Smoke and Carbon Monoxide Detector - Lifespan May Vary

  • Based on 48 reviews
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Availability: In Stock.
Fulfilled by Just Right!

Arrives Monday, Sep 15
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Features

  • SIMPLE TO CONNECT AND EASY TO REPLACE - Between Two To Five Years of Operational Period Before Suggested Replacement
  • GET AN EARLY WARNING SIGNAL If a cooking mishap leads to a small amount of smoke, Nest Protect will let you know without setting off the full alarm
  • RECEIVE CLEAR DIRECTION IN AN EMERGENCY Alarm speaks to you with a human voice and tells you the location and levels of smoke or carbon monoxide when they are present
  • PROTECT YOUR LOVED ONES AND YOUR HOME Detects levels of smoke and carbon monoxide within your home and tests itself automatically
  • LIGHT YOUR PATH AT NIGHT Pathlight illuminates your way in the dark. Adjust its brightness, leave it on as a nightlight or turn it off from the Nest Protect app
  • HARDWIRED CONNECTION PROVIDES DEPENDABLE POWER Wired directly to your electrical system, with backup battery to ensure operation during a power outage
  • SEND ALERTS TO YOUR SMARTPHONE Provides battery and sensor status notifications so you're always informed, and safety history so you can see what happened over the last 10 days. You can even silence the alarm from your smartphone
  • STAY ON TOP OF ANY SITUATION Synchronized sensors ensure that when 1 alarm senses danger, every alarm in the house will make you aware of the situation. If carbon monoxide is present, Nest Protect links with your Nest Thermostat (sold separately) to automatically turn off your gas furnace
  • WHAT IS THE REPLACE BY DATE - Using a Nest Protect past "Replace By" date *may lead to reduced sensor accuracy and reliability. Regular testing becomes critical. *The Recommendation is a guideline for ideal replacement making regular testing essential to ensure your Nest Protect's continued functionality. Test your Nest Protect monthly, at a minimum, using the button or the Nest app
  • PACKAGE INCLUDES: Google Nest Protect (2nd Gen) Wired Smart Smoke & Carbon Monoxide Alarm with 12-Month Usage - Chalk, 120 AC Connector and User Guide

Description

ONE YEAR OPERATIONAL PERIOD - Nest Protect reliably detects and alerts you to the presence of smoke or carbon monoxide in your home. The alarm speaks to you in a calm, clear, human voice, telling you the location of the danger. It also provides smartphone alerts and battery status updates to help protect your home. This hardwired version is suitable for homes with existing hardwired smoke or CO detectors. PRODUCT FEATURES: SIMPLE TO INSTALL AND EASY TO REPLACE 12-Month Operational Period (Date May Vary) or More Before Suggested Replacement Date. PROTECT YOUR LOVED ONES AND YOUR HOME Detects levels of smoke and carbon monoxide within your home and tests itself automatically. LIGHT YOUR PATH AT NIGHT Pathlight illuminates your way in the dark. Adjust its brightness, leave it on as a nightlight or turn it off from the Nest Protect app. RECEIVE CLEAR DIRECTION IN AN EMERGENCY Alarm speaks to you with a human voice and tells you the location and levels of smoke or carbon monoxide when they are present. SEND ALERTS TO YOUR SMARTPHONE Provides battery and sensor status notifications so you're always informed, and safety history so you can see what happened over the last 10 days. You can even silence the alarm from your smartphone. HARDWIRED CONNECTION PROVIDES DEPENDABLE POWER Wired directly to your electrical system, with backup battery to ensure operation during a power outage. GET AN EARLY WARNING SIGNAL If a cooking mishap leads to a small amount of smoke, Nest Protect will let you know without setting off the full alarm. STAY ON TOP OF ANY SITUATION Synchronized sensors ensure that when 1 alarm senses danger, every alarm in the house will make you aware of the situation. If carbon monoxide is present, Nest Protect links with your Nest Thermostat (sold separately) to automatically turn off your gas furnace. PRODUCT FAQ: Q: What is the "Replace By" date on my Nest Protect? A: The "Replace By" date is a recommended end-of- service date, not a strict expiration. It indicates when the sensors may begin to potentially affect accuracy. Q: My Nest Protect's manufacture date is older than 10 years. Is it expired? A: No, the 10-year guideline is a recommendation. Your Nest Protect may continue to function reliably beyond that period. Q: So, my Nest Protect is still good after 10 years? A: It can be. However, regular testing is crucial to confirm it's still operating correctly. Q: What happens if I use it past the "Replace By" date? A: Using a Nest Protect past its "Replace By" date may lead to reduced sensor accuracy and reliability. Regular testing becomes even more critical. Q: What should I do when it reaches the "Replace By" date? A: Replacement is recommended for optimal safety. However, consistent testing can help determine if the unit is still functioning correctly. Q: How often should I test my Nest Protect? A: Test your Nest Protect monthly, at a minimum, using the button or the Nest app. WHAT IS THE REPLACE BY DATE - Using a Nest Protect past "Replace By" date may impact the sensors over time and the ideal recommendation is to replace the device or conduct frequent testing if new models are unavailable or unable to replace. Regular testing is critical. The Recommendation is a guideline for ideal replacement making regular testing essential to ensure your Nest Protect's continued functionality. Test your Nest Protect monthly, at a minimum, using the button or the Nest app. PACKAGE INCLUDES:Google Nest Protect (2nd Gen) Wired Smart Smoke & Carbon Monoxide Alarm with 12-Month Usage - Chalk, 120 AC Connector and User Guide SIMPLE TO CONNECT AND EASY TO REPLACE - One Year Operational Period Before Suggested Replacement

Brand: Google


Style: Wired


Power Source: Wired


Color: White


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


Item Weight: 5 Pounds


Alarm: Audible


Sensor Type: Electrochemical


Number of Items: 1


Manufacturer: Google Nest


Brand: ‎Google


Style: ‎Wired


Power Source: ‎Wired


Color: ‎White


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


Item Weight: ‎5 Pounds


Alarm: ‎Audible


Sensor Type: ‎Electrochemical


Number of Items: ‎1


Manufacturer: ‎Google Nest


UPC: ‎659680642057


Part Number: ‎NEST-S3003LWES-WIRED


Item Weight: ‎5 pounds


Item model number: ‎S3003LWESWIRED


Batteries: ‎3 Lithium Metal batteries required.


Size: ‎1


Voltage: ‎1.5 Volts


Item Package Quantity: ‎1


Included Components: ‎Wall plate


Batteries Included?: ‎No


Batteries Required?: ‎No


Date First Available: July 17, 2012


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Monday, Sep 15

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


  • Old units that may only have a 12 month lifespan (rather than 10 years)
I ordered 3 of these, and decided to return them before opening them. A few things seemed suspicious: 1) The packaging looks a little old, like it's been sitting on a shelf for a long time. 2) The product image on the front doesn't match the current Google packaging. This tells me that it's from a much earlier release date. 3) Each box has a "QC" sticker attached. I don't see this on other units that I ordered directly from Google. Does this mean the boxes were opened at some point, and then later tested for quality? I'm not sure. 4) The product title on Amazon includes the words "Lifespan May Vary." I didn't notice this when I ordered. Hmmm...the lifespan should be 10 years as required by law. 5) The product description says, "Between Two To Five Years of Operational Period Before Suggested Replacement." Once again, it should be 10 years. 6) Another line from the description says, "12-Month Operational Period (Date May Vary)." So which is it? 12 months, 2 years, or 5 years? Anyway, these appear to be very old units. I would not recommend them. Buy them directly from Google instead. ... show more
Reviewed in the United States on April 22, 2025 by James Astro

  • works great
Easy to set up using the app. I don't like using google to do anything because it's too invasive. I was able to log into the Nest site .The set up was simple and the installation was quick. We replaced out new 02 and smoke sensor with the same product we had the last time . Ours is in the hall way so I like the light. although it can be annoying because we have cats and they constantly run up and down the hall way. Other then that Yi think it's great , It creates a safe secure feeling . ... show more
Reviewed in the United States on February 25, 2025 by bjmusic

  • Manufactured in 2018
DO NOT BUY!! Purchase, shipping, etc was no problem - but when I opened them up to install, the manufacture date was 2018. Don’t know if you realize this, but it’s now 2025. The recommended replace date is a max of 10 years from the manufacture date, so looks like I paid a ton of money to get 2-3 years out of these. Not happy. ... show more
Reviewed in the United States on April 12, 2025 by Amazon Customer Amazon Customer

  • Great product.
This works great! Love it!
Reviewed in the United States on April 29, 2025 by Mandy Horn

  • I was sent 7 year old units with a 3 year expiration.
The Nest Protect is designed to have a 10 year expiration. I was sent 2 units that are 7 years old. They only had 3 years of use left. I only discovered that problem after I installed the units and went to the technical info section of the app.
Reviewed in the United States on April 14, 2025 by Chris

  • Price and Age of device
The Product is good this three star rating is only about the price and age of the product sent. I found the same item at another box store for $99.00 even with the return free due to shipping I still saved over $80.00. The age of the device they sent me was from 2020 so I think the marketing of 2nd generation is a bit misleading. The one from the box store was made in 2023. ... show more
Reviewed in the United States on March 21, 2025 by Howard Lunsford

  • Love it! Google l, Don't stop making them!
Love it! Google, don't stop making them please! I love the google Nest for smoke alarms. The phone app makes it very easy to install. They have three features that really make them stand out against other alarms. 1) There is a warning that it is about to go off that allows you time to stop it from happening HUGE 2) The phone app tells you which one is going off. 3) there is a motion detector light that acts as a night light when you start moving. ... show more
Reviewed in the United States on March 10, 2025 by Yeshurun Blumenfeld

  • 2017 model sold in 2025
We expected it would be old per another review but wanted to give it a try since Google store is out of stock. To illustrate the “old” qualification, the Nest we received was from 2017 (so only 2 years left in life span); box has been open and was resealed with tape. We returned it.
Reviewed in the United States on March 18, 2025 by Isabelle Steiner

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