Customers admire the Smoke and Carbon Monoxide Detector Battery Powered for its simple setup, connectivity with Google Nest devices, and overall performance. The loud alarm volume and compatibility with existing Nest hardware are also appreciated. However, some customers noted the absence of Nest Sense features and the detector's size. Despite these concerns, the detector's design and expected long battery life are generally well-received.
This summary was generated by AI based on customer reviews.
The vast majority of our reviews come from verified purchases. Reviews from customers may include My Best Buy members, employees, and Tech Insider Network members (as tagged). Select reviewers may receive discounted products, promotional considerations or entries into drawings for honest, helpful reviews.
Page 3 Showing 41-60 of 69 reviews
Pros mentioned:
Installation ease
Rated 5 out of 5 stars
Great Alternative To Nest Smoke Detectors
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy to set up and compatible with my other Nest products
I would recommend this to a friend
Pros mentioned:
Overall performance
Rated 5 out of 5 stars
Good nest replacement
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Works as designed to replace an expired nest product
I would recommend this to a friend
Pros mentioned:
Installation ease
Rated 5 out of 5 stars
Easy setup
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Setup was easy and great replacement for nest protect
I would recommend this to a friend
Pros mentioned:
Installation ease
Rated 5 out of 5 stars
Great replacement for nest
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy set up, works with nest. Had it going in about 7 mins
I would recommend this to a friend
Pros mentioned:
Overall performance
Rated 5 out of 5 stars
Smoke detector.
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
Great smoke detector. Great price and easy to install.
I would recommend this to a friend
Rated 5 out of 5 stars
Good Product
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy to use, quality, very good! I had no issues setting up either.
I would recommend this to a friend
Rated 5 out of 5 stars
good product
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
It works well so far. Fits the base of Google Nest.
I would recommend this to a friend
Rated 4 out of 5 stars
First alert SC5
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
This item was purchased to replace an expiring Nest detector. The installation was simple but it is uncertain if I successfully integrated it with the remaining Nest products.
I would recommend this to a friend
Rated 5 out of 5 stars
Connected Carbon Monoxide Detector
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Good, works with my Nest Protect. Will buy more in the future.
I would recommend this to a friend
Rated 5 out of 5 stars
Woks great
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Posted . Owned for 2 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy to setup. No issues. Syncs with all my othet nest products.
I would recommend this to a friend
Rated 4 out of 5 stars
Not a True Substitute to Nest Protect
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Not as user friendly as Nest Protect. Was more complicated to add to Google Home. Mount already installed from Nest Protect didn’t line up for this one to hang in proper orientation.
I would recommend this to a friend
Rated 5 out of 5 stars
Excellent
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Posted . Owned for 3 weeks when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Excellent! My Nest Protect expired and I was able to keep the base plate intact and just twist the First Alert on the base.
I would recommend this to a friend
Rated 5 out of 5 stars
Great Product
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Posted . Owned for 1 week when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy to use on the app and installation was smooth
I would recommend this to a friend
Rated 5 out of 5 stars
First Alert replacement for expiring Nest Protect
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This reviewer received promo considerations or sweepstakes entry for writing a review.
If this integrates to replace my 10-year-old Nest Protect, and controllable from the Nest app, then I'm happy!
I would recommend this to a friend
Rated 5 out of 5 stars
Easy Peasy
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This reviewer received promo considerations or sweepstakes entry for writing a review.
Easy to set up and sync up with my Google Home App.
I would recommend this to a friend
Rated 1 out of 5 stars
Poor Compatibility with NEST and Google Home
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
I was forced to purchase five of because I had NEST alarms that were expiring and this was the only compatible solution with my remaining NEST alarms that still have a few years of life. Not impressed. I’m getting notifications that there are issues with its connectivity to the Google Home app. Every time I open the Home app I’m told to finish setting up the First Alert smoke alarms, but then still get an error after doing so. This is for a second home and now I’m concerned they’re not going to alert me in a fire. They have major compatibility issues with this product.
No, I would not recommend this to a friend
Brand response from FirstAlertProductExpert
Posted .
Hi Mark, please know that we take your issue seriously. Under normal conditions and with proper installation, the SC5 detectors should function reliably. We would love to help you get everything functioning correctly, in order to properly assist you, please reach out to our support team at 800-323-9005. We look forward to hearing from you! Let us make things right for you. - Maria
Cons mentioned:
Features
Rated 1 out of 5 stars
stinks
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Posted .
This reviewer received promo considerations or sweepstakes entry for writing a review.
stinks. it doesn’t work with your Nest app and doesn’t have the night light feature. a $20 regular smoke detector does the same thing
No, I would not recommend this to a friend
Brand response from FirstAlertProductExpert
Posted .
Hi HarryOh, thanks for your feedback! The SC5 can be set up through the First Alert app and linked to the Google Home app, allowing it to work alongside your SC5 and Nest Protect devices. While this model doesn’t include a night light, we’re actively considering it for a future version. If you need help with setup, we’re happy to assist at 1-800-323-9005. - Maria
Pros mentioned:
Battery life, Connectivity, Installation ease
Rated 5 out of 5 stars
A smart smoke and CO detector
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I wanted to get a new carbon monixide/smoke detector for my house. I have an older smart one that is going on 5 years or so from another company, but the app does not work anymore, and I cannot find a battery for it anymore either, but it still tests as working. That being said, I liked the piece of mind it di ld provide me by sending an alert to my phone if I was out of the house. This does connect to Google home and nest and is connected by wifi to your network. This comes with a quicksand guide and all you have to do is follow the guide. The app seems reasonable enough, account setup easy, and the keep the book handy following with the app because you need the qr code, and it set up in about 5 minutes. The mounting is easy also, I did use wall anchors provided and mounted it to a wall, but also can be done to a ceiling. This will send an alert to the phone which has a quick connect to authorities if needed (911). What I do like about this one vs last is it does not look like a proprietary battery, the look like 6 n size batteries I can change if it gets low. As for the sound, I tested this and by golly it will get your attention, they state it us loud and it gives you at countdown. I'd estimate around 105 to 110 dB at least. I can hear this from the back of my house very easily, and it's up in the front of the house. It is almost deafening under it when going off. So far, I have no reason not to give it 5 stars. It is way more expensive than your common smoke/co detector that is battery and non wifi, but if you want piece of mind to know about your house or ones back home (pets/family) if you are gone, this presents a a good option.
I would recommend this to a friend
Rated 1 out of 5 stars
Garbage
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Posted . Owned for 1 month when reviewed.
This reviewer received promo considerations or sweepstakes entry for writing a review.
Constantly disconnects from the app. Prone to false alarms. Significant downgrade from Nest alarms.
No, I would not recommend this to a friend
Brand response from FirstAlertProductExpert
Posted .
Hi, thank you for your feedback, we understand how important continuity and design are when transitioning from long-term Nest devices. We're sorry to hear you're encountering unexpected alerts with your SC5 detectors.
Please contact First Alert Customer Support at 1-800-323-9005 (Mon–Fri: 9am–8pm CST, Sat–Sun: 9am–5pm CST) so we can help you troubleshoot the situation and ensure your system is functioning as intended. Your safety and peace of mind are our top priorities! — Charlie
Pros mentioned:
Connectivity, Installation ease
Cons mentioned:
Size
Rated 5 out of 5 stars
Easy to set up, quick to install
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This reviewer received promo considerations or sweepstakes entry for writing a review.
I'm not sure how to write a thousand letter review on a smoke detector, but here it goes... This was super simple to set up. Quick app download, synced via Bluetooth, and connected to my Google Home and my wifi. Then came the physical installation. Two screws into the drywall held the mount platform, then a quick twist and click secured the smoke detector. A peek at the app and my Google Home both said the device was working as expected, so I am content. I will change my opinion if my house burns down without my notification. It's a large unit, roughly Mac Mini size and shape, but doesn't bring a lot of attention to itself with gaudy LED lights or anything. I think I'll get a few more for some of the other rooms in my house (although this one is placed in a central location). The app is super simple to set up and yet another account to create and log into. I just really wanted the peace of mind and security knowing that this will let us know of a carbon monoxide issue as well as the smoke, and can notify me or my wife when we aren't home. Definitely worth it.