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forum threadneomatrixviper posted Jun 01, 2026 08:52 PM
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Item 1 of 2
forum threadneomatrixviper posted Jun 01, 2026 08:52 PM

Kidde Smart Smoke and Carbon Monoxide Detector, Ring App Enabled, Hardwired, 2-pack $99.99 free shipping Costco.com

$100

$120

16% off
Costco Wholesale
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https://www.costco.com/p/-/400042...007cb382-0

$20 OFF
$20 manufacturer's savings is valid 6/1/26 through 6/30/26. While supplies last.
Limit 10 per member.


Real-time Smoke and Carbon Monoxide Notifications in the Ring app
Over 25% Faster Smoke Detection*
Optional Ring Subscription with 24/7 Monitoring for $5/month**
Provides Whole-home Smart Connectivity
Cutting-edge Sensing Technology Reduces False Alarms.***
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https://www.costco.com/p/-/400042...007cb382-0

$20 OFF
$20 manufacturer's savings is valid 6/1/26 through 6/30/26. While supplies last.
Limit 10 per member.


Real-time Smoke and Carbon Monoxide Notifications in the Ring app
Over 25% Faster Smoke Detection*
Optional Ring Subscription with 24/7 Monitoring for $5/month**
Provides Whole-home Smart Connectivity
Cutting-edge Sensing Technology Reduces False Alarms.***

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6 Comments

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Jun 04, 2026 12:51 AM
221 Posts
Joined May 2014
-DP-Jun 04, 2026 12:51 AM
221 Posts
X-sense combo detectors seem to be generally priced MUCH better....
Jun 05, 2026 02:42 AM
4,885 Posts
Joined Oct 2011
asuchemistJun 05, 2026 02:42 AM
4,885 Posts
Quote from -DP- :
X-sense combo detectors seem to be generally priced MUCH better....
Is X-sense legit? Do they make good product?
Jun 05, 2026 08:22 AM
3,541 Posts
Joined Jun 2006
DAC21Jun 05, 2026 08:22 AM
3,541 Posts
Quote from -DP- :
X-sense combo detectors seem to be generally priced MUCH better....
There wi-fi smart models (with app notifications) were recalled by Amazon about five months back. They didn't have the most current UL listing. (maybe not listing at all, I don't recall) I received credit after sending in a photo of the x-sense unit with "do not use" written on it with permanent marker.

I'm only finding non smart units on Amazon currently with the UL certification prominently displayed in the listing. I had two more of the x-sense wi-fi units that I bought directly from xsense ready to install when I received the Amazon notification. I reached out to x-sense customers service if their unit was safe to use, and or were they working on getting the UL certification for that model.... nothing but crickets was their response.

Yep, Kidde smart models cost more but with a partnership with Ring you know they are UL-217 / Gen. 10 certified, FCC qualified and even Nanny State California Fire Marshall approved.

Wirecutter, a respected review website, rated the Kidde smart smoke / CO detector as best overall . They wouldn't test the x-sense unit due to no UL listing, no co detection and no Alexa, Apple, Google Home integration.
Last edited by DAC21 June 5, 2026 at 01:52 AM.
1
Jun 05, 2026 08:39 AM
3,541 Posts
Joined Jun 2006
DAC21Jun 05, 2026 08:39 AM
3,541 Posts
Quote from asuchemist :
Is X-sense legit? Do they make good product?
See my reply as it pertains to the x-sense smart model.
Jun 07, 2026 10:07 PM
778 Posts
Joined Feb 2015
CndnMPJun 07, 2026 10:07 PM
778 Posts
Too bad it's the ring version instead of the Kidde app version. One neat thing is you only need one smart one to get alarm notifications if the other dumb Kidde detectors are interconnected.
Jun 08, 2026 06:07 PM
4,885 Posts
Joined Oct 2011
asuchemistJun 08, 2026 06:07 PM
4,885 Posts
Quote from DAC21 :
See my reply as it pertains to the x-sense smart model.
I just got email from Kidde. As of 2025 they have transitioned to Intertek as their 3rd party tester and have the ETL label. Looks like most of these companies doing that including first alert.

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