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expiredphoinix | Staff posted Apr 11, 2026 05:00 AM
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expiredphoinix | Staff posted Apr 11, 2026 05:00 AM

$19.99 | 3-in-1 Carbon Monoxide w/Temp & Humidity Detector at Woot!

$20

$90

77% off
Woot!
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Woot! [woot.com] has 3-in-1 Carbon Monoxide w/Temp & Humidity Detector for $19.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.

Price:
$70 lower (78% savings) than the pointless price of $89.99

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About the Poster
Woot! [woot.com] has 3-in-1 Carbon Monoxide w/Temp & Humidity Detector for $19.99. Shipping is free for Amazon Prime Members (must login with your Amazon account and select a shipping address in order for Woot to apply free shipping) or is otherwise $6 per order.

Price:
$70 lower (78% savings) than the pointless price of $89.99

Please report the deal if expired
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15 Comments

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Expert
This user is an Expert in Tech & Electronics
Apr 11, 2026 07:51 AM
19,806 Posts
Joined Sep 2011
bluekiwi
Expert
This user is an Expert in Tech & Electronics
Apr 11, 2026 07:51 AM
19,806 Posts
Appears to be this brand
$46.34 for a 2 pack, canadian,

https://www.amazon.ca/Monoxide-De...B0FC1J8MK3
2
Apr 11, 2026 11:31 AM
109 Posts
Joined Nov 2020
ErnestoSimonApr 11, 2026 11:31 AM
109 Posts
Thank you. Got 3 units to replace my very old ones. Nice to have temp and humidity as well.
Apr 11, 2026 04:33 PM
93 Posts
Joined Apr 2017
LemonarApr 11, 2026 04:33 PM
93 Posts
Quote from bluekiwi :
Appears to be this brand
$46.34 for a 2 pack, canadian,

https://www.amazon.ca/Monoxide-De...B0FC1J8MK3
Or this: https://www.amazon.com/Monoxide-D...=8-37&th=1
Apr 11, 2026 04:34 PM
93 Posts
Joined Apr 2017
LemonarApr 11, 2026 04:34 PM
93 Posts
3 for $33 on Amazon - https://www.amazon.com/Monoxide-D...=8-37&th=1
1
Expert
This user is an Expert in Tech & Electronics
Apr 11, 2026 06:04 PM
19,806 Posts
Joined Sep 2011
bluekiwi
Expert
This user is an Expert in Tech & Electronics
Apr 11, 2026 06:04 PM
19,806 Posts
Quote from Lemonar :
3 for $33 on Amazon - https://www.amazon.com/Monoxide-D...=8-37&th=1
3 for $33 is a better price vs 3 for $60 from this deal
Apr 11, 2026 06:40 PM
9,985 Posts
Joined Sep 2007
Santa_ClausApr 11, 2026 06:40 PM
9,985 Posts
Quote from ErnestoSimon :
Thank you. Got 3 units to replace my very old ones. Nice to have temp and humidity as well.
dude, cheaper at amazon for 3 see the replies.
Apr 11, 2026 06:41 PM
9,985 Posts
Joined Sep 2007
Santa_ClausApr 11, 2026 06:41 PM
9,985 Posts
2 reviews?

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Apr 11, 2026 06:51 PM
11,956 Posts
Joined Sep 2007
RugerRedhawkApr 11, 2026 06:51 PM
11,956 Posts
sketchy
Apr 11, 2026 07:13 PM
708 Posts
Joined Apr 2014
Henchman_21Apr 11, 2026 07:13 PM
708 Posts
I got this item from a previous Woot sale and it's not bad for the price. It's nice to have three meters.
Apr 11, 2026 07:14 PM
4,330 Posts
Joined Sep 2005
cjfrugalApr 11, 2026 07:14 PM
4,330 Posts
Quote from bluekiwi :
3 for $33 is a better price vs 3 for $60 from this deal
Currently unavailable
Apr 11, 2026 10:00 PM
338 Posts
Joined Aug 2020
WiseRose8215Apr 11, 2026 10:00 PM
338 Posts
Has anyone used it with HA?
Pro
Apr 12, 2026 05:41 PM
1,926 Posts
Joined Apr 2017
ekguru
Pro
Apr 12, 2026 05:41 PM
1,926 Posts
Reviewed in the United States on March 27, 2026
Item Package Quantity: 3
It doesn't alert until it hits 150ppms of co or higher and that point there would Harley be severely side effects. 30ppms in the ambient air is above the safety threshold.
Pro
Apr 13, 2026 04:10 AM
3,157 Posts
Joined Mar 2007
hkteaman
Pro
Apr 13, 2026 04:10 AM
3,157 Posts
Quote from Lemonar :
3 for $33 on Amazon - https://www.amazon.com/Monoxide-D...=8-37&th=1
Thanks for posting. Looks the same as Woot's deal, only 2 reviews but worth a try at $34 and 30 days return.
Pro
Apr 13, 2026 04:17 AM
964 Posts
Joined Jan 2007
Orange_Elvis
Pro
Apr 13, 2026 04:17 AM
964 Posts
I like my carbon monoxide at about 40% relative humidity.

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Pro
Apr 14, 2026 01:00 PM
3,157 Posts
Joined Mar 2007
hkteaman
Pro
Apr 14, 2026 01:00 PM
3,157 Posts
Quote from hkteaman :
Thanks for posting. Looks the same as Woot's deal, only 2 reviews but worth a try at $34 and 30 days return.
I received my order yesterday. The design looks good but the material feels cheap. The temperature reading was 3-5 degrees higher than my Govee thermometer and the CO reading is the same as my Kidde CO detector reading 0 ppm. I don't have a humidity device to compare the reading with. Basement reading is 10% higher than the first floor reading.
The display is well lit so it's easy read. I hope the CO reading stays accurate and I will keep an eye out and compare with the Kidde unit before moving it to another location. Overall, not bad for $11 each.
Last edited by hkteaman April 14, 2026 at 06:17 AM.

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