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expired Posted by vsspam • Nov 23, 2021
expired Posted by vsspam • Nov 23, 2021

Kidde Plug-In Carbon Monoxide Detector w/ Battery Backup

$12

$30

60% off
Amazon
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Update: This popular deal is back in stock again.

Amazon has Kidde Plug-In Carbon Monoxide Detector w/ Battery Backup (KN-COP-DP2) on sale for $13.04 -> now $11.84. Shipping is free with Prime or on $25+ orders.

Thanks to community member vsspam for finding this deal.
  • Note, eligible American Express cardholders with Rewards Points may save an additional 15% off (Up to $15 max) when redeeming a minimum of one point ($0.01) towards this purchase (learn more).
About this product:
  • CO (carbon monoxide) detector that alerts with a warning signal against dangerous levels of carbon monoxide in your home.
  • 85dB (decibel) alarm alerts of fire
  • Easy & quick installation: plugs directly into your home's standard wall outlet.
  • Protects during a power failure: two AA batteries (included) provide backup service in the event of a power outage.
  • 120-Volt
  • UL Certified
  • 10-Year Limited Warranty

Editor's Notes

Written by RevOne | Staff
  • About this deal:
    • This deal is $18.15 off (61% savings) the retail list price of $29.99.
  • Ratings & Reviews:
    • This product has a 4.7 out 5 star rating based on over 15,051 customer reviews on Amazon.
  • About this store:

Original Post

Written by vsspam
Community Notes
About the Poster
Deal Details
Community Notes
About the Poster
Update: This popular deal is back in stock again.

Amazon has Kidde Plug-In Carbon Monoxide Detector w/ Battery Backup (KN-COP-DP2) on sale for $13.04 -> now $11.84. Shipping is free with Prime or on $25+ orders.

Thanks to community member vsspam for finding this deal.
  • Note, eligible American Express cardholders with Rewards Points may save an additional 15% off (Up to $15 max) when redeeming a minimum of one point ($0.01) towards this purchase (learn more).
About this product:
  • CO (carbon monoxide) detector that alerts with a warning signal against dangerous levels of carbon monoxide in your home.
  • 85dB (decibel) alarm alerts of fire
  • Easy & quick installation: plugs directly into your home's standard wall outlet.
  • Protects during a power failure: two AA batteries (included) provide backup service in the event of a power outage.
  • 120-Volt
  • UL Certified
  • 10-Year Limited Warranty

Editor's Notes

Written by RevOne | Staff
  • About this deal:
    • This deal is $18.15 off (61% savings) the retail list price of $29.99.
  • Ratings & Reviews:
    • This product has a 4.7 out 5 star rating based on over 15,051 customer reviews on Amazon.
  • About this store:

Original Post

Written by vsspam

Community Voting

Deal Score
+304
Good Deal
Visit Amazon

Price Intelligence

Model: Carbon Monoxide Alarm, Alarm Audible Alert, Battery; AC Supply

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Top Comments

Firefighter here. I just want to confirm that these answers are absolutely correct. Any house using natural gas (generally methane) or propane should have explosive gas alarm(s) in addition to carbon monoxide detectors. Carbon monoxide is created by partially burned fuel releasing CO instead of CO2, and its source can be anything from a faulty pilot light, to a running car in an attached garage, to burning embers in the bottom of an ash bucket next to a wood stove (which can still generate enough CO to kill). It is colorless, odorless...undetectable except by carbon monoxide detectors. Honestly, every house should have at least one CO alarm, even if there aren't any presumed sources.

Explosive gas will not trigger carbon monoxide detectors, even at high concentrations. Usually people rely on the bad smell (like rotten eggs) that is added to natural gas/propane as a warning system. However, we have seen situations where gradual accumulation prevented detection due to nose blindness. A few years ago a man and woman came home from date night and could smell natural gas in their driveway as they pulled up. Their two teenage boys were at the back of the small house (1500 sq ft) playing video games and hadn't noticed a thing. One of them had nudged a kitchen stove burner knob and it was hissing out gas, filling the house. After that, they got one of the these alarms [amazon.com] and put it in their kitchen. Tested by leaving a burner slightly on, unlit...the alarm went off in under five minutes. I have the same unit in my own kitchen.

One last important point: if you smell gas in your house, do not start opening windows to air it out. Explosive gasses are only explosive at relatively low concentrations with air. Propane is only about 10%; methane around 15%. By the time you smell it, it's possible your concentrations could be higher than that. Opening windows could pull you back into the "danger zone". Don't ventilate; evacuate. Call the fire department. We can determine the concentrations and ventilation needs, as well as speed ventilations with fans that are low-risk for causing explosions.

Remember, as a general rule (in the US at least):
• We won't charge you for our help
• You are not bothering us
• If anything, you are probably making our day more interesting
• It is good practice for us
• We are then on-hand in case anything does explode

Alright, enough rambling from me. Be safe, everyone.
In case anyone is wondering where to place these -

Per EPA.gov
Carbon monoxide is actually slightly lighter than air.

https://www.epa.gov/indoor-air-qu...e-detector

119 Comments

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Nov 23, 2021
37,299 Posts
Joined Aug 2007
Nov 23, 2021
fyu
Nov 23, 2021
37,299 Posts

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

Carbon monoxide is actually slightly lighter than air.

https://www.epa.gov/indoor-air-qu...e-detector
3
1
Nov 23, 2021
6,792 Posts
Joined Jun 2014
Nov 23, 2021
ToolDeals
Nov 23, 2021
6,792 Posts
Quote from fyu :
Carbon monoxide is actually slightly lighter than air.

https://www.epa.gov/indoor-air-qu...e-detector [epa.gov]
.
Yes, I do prefer the detectors with a cord to mount the unit higher up, but you could plug this into an extension cord and sit on a shelf or whatever, or use the battery backup that would need to be verified for longevity.
================\
Regardless, every home with any gas or fossil fuel appliance should have a carbon monoxide detector.
2
Nov 23, 2021
103 Posts
Joined Feb 2013
Nov 23, 2021
kpk11980
Nov 23, 2021
103 Posts
I believe amazon free shipping starts with $25 purchase and not $35.
2
4
Nov 23, 2021
4,083 Posts
Joined Oct 2004
Nov 23, 2021
mrstangblb
Nov 23, 2021
4,083 Posts
Thanks, OP - I needed one for my Aunt's Christmas present. Just in time!
1
Nov 23, 2021
1,511 Posts
Joined Dec 2005
Nov 23, 2021
Gettingnowhere
Nov 23, 2021
1,511 Posts
Could those be used with say natural gas? Our house has an existing pipe for a fireplace that was never build (it feeds into the house). I want to put this next to it in case if it ever leaks.
Nov 23, 2021
224 Posts
Joined Jul 2009
Nov 23, 2021
iLluFe
Nov 23, 2021
224 Posts

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

In case anyone is wondering where to place these -

Per EPA.gov
Quote :
Where Should I Place a Carbon Monoxide Detector?

Because carbon monoxide is slightly lighter than air and also because it may be found with warm, rising air, detectors should be placed on a wall about 5 feet above the floor. The detector may be placed on the ceiling. Do not place the detector right next to or over a fireplace or flame-producing appliance. Keep the detector out of the way of pets and children. Each floor needs a separate detector. If you are getting a single carbon monoxide detector, place it near the sleeping area and make certain the alarm is loud enough to wake you up.
5
1
Nov 23, 2021
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Nov 23, 2021
Tyros
Nov 23, 2021
110 Posts

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Quote from aajeev :
Could those be used with say natural gas? Our house has an existing pipe for a fireplace that was never build (it feeds into the house). I want to put this next to it in case if it ever leaks.
No, CO is a byproduct of combustion and is colorless/odorless. Natural gas is colorless but usually has a scent added to it so you can tell if there's a leak.
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Original Poster
Pro
Nov 23, 2021
907 Posts
Joined Apr 2008
Nov 23, 2021
vsspam
Original Poster
Pro
Nov 23, 2021
907 Posts

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

Quote from aajeev :
Could those be used with say natural gas? Our house has an existing pipe for a fireplace that was never build (it feeds into the house). I want to put this next to it in case if it ever leaks.
You could get one of these (I have one next to my gas dryer):

https://www.amazon.com/Nighthawk-...=hi&sr=1-4

I've read it's better to get separate detectors though as they may expire at different times.
1
Original Poster
Pro
Nov 23, 2021
907 Posts
Joined Apr 2008
Nov 23, 2021
vsspam
Original Poster
Pro
Nov 23, 2021
907 Posts
Quote from kpk11980 :
I believe amazon free shipping starts with $25 purchase and not $35.
I'm a Prime member, but I see this on the listing:

FREE delivery today if you order $35 of qualifying items within 24 mins.
Nov 23, 2021
1,361 Posts
Joined Jul 2016
Nov 23, 2021
AG1802
Nov 23, 2021
1,361 Posts
Quote from iLluFe :
In case anyone is wondering where to place these -

Per EPA.gov
Confused now. I was planning on putting one in the furnace room where my gas water heater and furnace are in the garage. Are these considered flame producing devices😂
1
Nov 23, 2021
16 Posts
Joined Oct 2016
Nov 23, 2021
PeterM8007
Nov 23, 2021
16 Posts
Quote from AG1802 :
Confused now. I was planning on putting one in the furnace room where my gas water heater and furnace are in the garage. Are these considered flame producing devices😂
googling suggests keep them 15 feet away so you avoid false alarms from startup tiny amounts.
Nov 23, 2021
184 Posts
Joined May 2017
Nov 23, 2021
Human-Sloth
Nov 23, 2021
184 Posts
Thanks op. Repped. Got 5 units for my 3 levels and free shipping by today. Am prime member.
Nov 23, 2021
2,309 Posts
Joined Oct 2021
Nov 23, 2021
StrongMoney163
Nov 23, 2021
2,309 Posts
Quote from vsspam :
I'm a Prime member, but I see this on the listing:

FREE delivery today if you order $35 of qualifying items within 24 mins.
that's for expedited shipping, they're undertaking to get it to you in something like six hours, as opposed to tomorrow if you order less than $35.
Nov 23, 2021
1,361 Posts
Joined Jul 2016
Nov 23, 2021
AG1802
Nov 23, 2021
1,361 Posts
Quote from PeterM8007 :
googling suggests keep them 15 feet away so you avoid false alarms from startup tiny amounts.
Oh thank you so much! Kept getting conflicting answers. I will just stick to the first alert smoke+CO alarms I got at lowes on clearance the other day then

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Nov 23, 2021
1,551 Posts
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Nov 23, 2021
revieweronline
Nov 23, 2021
1,551 Posts
Quote from Tyros :
No, CO is a byproduct of combustion and is colorless/odorless. Natural gas is colorless but usually has a scent added to it so you can tell if there's a leak.
Imagine all the scent that is added to the gas!

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