3 in 1 Carbon Monoxide Detector, Carbon Monoxide Detector Plug in Wall with Temperature & Humidity Display $20 FS PRIME WOOT

linhnd2000

Feb 20, 2026 01:46 PM

608 Posts

Joined Nov 2003

linhnd2000Feb 20, 2026 01:46 PM

608 Posts

Is this 110v only? Can't find it anywhere, even from description and pix on woot

itsmi

Feb 20, 2026 03:54 PM

30 Posts

Joined Nov 2011

itsmiFeb 20, 2026 03:54 PM

30 Posts

What's the brand?
Amazon has a similar one for $24.99:
https://a.co/d/0budBuvB

And a 4-in-1 for $14.99 in Jan:
https://slickdeals.net/f/19098844

Last edited by itsmi February 20, 2026 at 09:00 AM.

GreenRaccoon7115

Feb 21, 2026 03:57 PM

133 Posts

Joined Oct 2023

GreenRaccoon7115Feb 21, 2026 03:57 PM

133 Posts

I bought one of these on a previous deal. It is very cheaply made but I keep it plugged in in the kitchen area (yes, it's 110) and having temp and humidity is nice anyway. Hopefully it will alert if there's CO but I wouldn't count on this for that. Also, the alarm is not very loud so don't count on hearing it upstairs if you're down or vice-versa.

2

Drew_almighty

Feb 21, 2026 04:34 PM

133 Posts

Joined Jul 2005

Drew_almightyFeb 21, 2026 04:34 PM

133 Posts

Our community has rated this post as helpful. If you agree, why not thank Drew_almighty

FYI this company buys 5 star reviews. After I purchased one of these I got a postcard offering me money back if I rated the product 5 stars

8

3

ChattySnagsIt

Feb 22, 2026 03:17 AM

116 Posts

Joined Sep 2025

ChattySnagsItFeb 22, 2026 03:17 AM

116 Posts

Saw this deal ended up buying a similar one on Amazon for$18 each reviews seemed better and it's a 4-1 https://www.amazon.com/gp/aw/d/B0...prod_image

1

FlashPilot

Feb 25, 2026 07:04 AM

797 Posts

Joined Feb 2016

FlashPilotFeb 25, 2026 07:04 AM

797 Posts

I have no idea about this one and went through buying a CO detector last year. A few take-aways: woot throws a huge red flag straight away. They often advertise stock that didnt and wont sell on Amazon. Realize that most of these cheapo detectors dont detect CO or pollutants correctly and are best tossed in the garbage. And they are often extremely slow to react with embarrassingly low sampling rates and require far more CO above safe levels to activate... if they ever activate at all. Id be surprised if this one is UL certified. Many of them claim to be but are not. If it burns your house down, good luck seeking ligation. It happens all the time in the US.
Go online and look for unsolicited reviews (NO SHILLS) who tested similar devices against calibrated precision equipment to find out which ones are worth your money and do the job they are advertised as doing. Decent ones cost a good deal more and are worth the price of admission if you're serious about protecting your life and those around you. The market and tech changes rapidly, so search for 2026 CO detector reviews containing a lot of activity and read the comments. IMO, this is nothing to mess around with. Always verify what you're getting in CO and fire/smoke detection.

Last edited by FlashPilot February 24, 2026 at 11:07 PM.

3 in 1 Carbon Monoxide Detector, Carbon Monoxide Detector Plug in Wall with Temperature & Humidity Display $20 FS PRIME WOOT

$20

$90

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