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Kidde battery operated CO alarmKidde

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Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

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4.7 17,869 ratings

$24.89

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Purchase options and add-ons

Brand	Kidde
Power Source	Battery Powered
Color	Detector
Product Dimensions	1.5"D x 4.5"W x 2.75"H
Item Weight	0.01 Pounds
Alarm	Audible
Operating Humidity	5% to 95% relative humidity, non-condensing
Upper Temperature Rating	37.8 Degrees Celsius
Sensor Type	Electrochemical

About this item

Electrochemical sensor technology detects CO gas
Easy installation, no wiring needed, detects during a power failure by operating on 2-AA batteries (included)
Conveniently designed & portable: simple to install on a wall of your home or place on a tabletop
Green LED indicates power to the smoke detector, while an 85-decibel alarm & a red LED indicates the presence of carbon monoxide
Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
Test-Hush button makes it easy to test the carbon monoxide detector or temporarily silence the low battery chirp warning
UL listed with a 10-Year limited manufacturer warranty on the alarm only (not a battery performance claim). Warranty begins when the alarm is powered on. If that date is unknown, it should be assumed that replacement is needed.

› See more product details

Customer ratings by feature

Easy to use

4.8

Easy to install

4.7

Easy to read

4.7

Accuracy

4.5

See all reviews

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Product information

Technical Details

Brand

‎Kidde

Power Source

‎Battery Powered

Color

‎Detector

Product Dimensions

‎1.5"D x 4.5"W x 2.75"H

Item Weight

‎0.01 Pounds

Alarm

‎Audible

Operating Humidity

‎5% to 95% relative humidity, non-condensing

Upper Temperature Rating

‎37.8 Degrees Celsius

Sensor Type

‎Electrochemical

Manufacturer

‎Kidde Safety

Part Number

‎21008873

Item Weight

‎0.16 ounces

Country of Origin

‎China

Item model number

‎KN-COPP-B-LPM

Batteries

‎3 AA batteries required. (included)

Is Discontinued By Manufacturer

‎No

Size

‎KN-COPP-B-LPM

Pattern

‎Detector

Voltage

‎3 Volts

Item Package Quantity

‎1

Special Features

‎Portable

Included Components

‎Kidde Battery Operated Carbon Monoxide Alarm with Digital Display KN-Copp-B-LPM

Batteries Included?

‎Yes

Batteries Required?

‎Yes

Battery Cell Type

‎Alkaline

Warranty Description

‎10 Year Limited

Additional Information

ASIN

B004Y6V5CI

Customer Reviews

4.7 17,869 ratings

4.7 out of 5 stars

Best Sellers Rank

#1,763 in Tools & Home Improvement (See Top 100 in Tools & Home Improvement)
#7 in Carbon Monoxide Detectors

Date First Available

May 11, 2011

Warranty & Support

Amazon.com Return Policy:Amazon.com Voluntary 30-Day Return Guarantee: You can return many items you have purchased within 30 days following delivery of the item to you. Our Voluntary 30-Day Return Guarantee does not affect your legal right of withdrawal in any way. You can find out more about the exceptions and conditions here.

Product Warranty: For warranty information about this product, please click here [PDF ]

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From the manufacturer

Kidde Battery Operated Carbon Monoxide Alarm

What is Carbon Monoxide?

Carbon Monoxide (CO) is colorless, odorless and tasteless poison gas that can be fatal when inhaled.
Potential Sources of CO

There are several different sources that carbon monoxide can come from within the home.
Signs of CO in Pets

53% of pet owners cannot identify the symptoms of CO poisoning because they are often nonspecific.

1 What is CO? 2 CO Sources 3 Signs of CO in Pets 4 Smoke & CO Law Map

Kidde Carbon Monoxide (CO) Detectors – Battery & Hardwired

	Battery CO + Digi Display	10-Yr CO Alarm	10-Yr Digital Display CO	Battery CO Alarm	Hardwired CO Alarm
Customer Reviews	17,869	399	991	30,749	906
Price	$24.89	$42.99	$42.95	$18.27	$98.79
Detection Type	Carbon Monoxide	Carbon Monoxide	Carbon Monoxide	Carbon Monoxide	Carbon Monoxide
Power Source	3 AA Batteries (included)	10-Yr Built-In Battery	10-Yr Built-In Battery	2 AA Batteries (included)	Hardwired; 9VBackup (included)
No Battery Changes/Night Chirp	—	✔	✔	—	—
Digital Display	✔	—	✔	—	✔
Mounting Options	Wall Mount & Tabletop	Wall Mount & Tabletop	Wall Mount & Tabletop	Wall Mount & Tabletop	Ceiling
Peak Level Memory	✔	—	✔	—	✔
Event Memory	—	✔	—	—	—
Tamper Resistant	—	—	—	—	✔
Interconnect Capability	—	—	—	—	✔
End of Life Notification	✔	✔	✔	✔	✔
UL Listed	✔	✔	✔	✔	✔

Looking for specific info?

Product guides and documents

User Manual (PDF)

Product Description

The Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, model 900-0146, is a carbon monoxide detector that uses electrochemical sensor technology to detect carbon monoxide. The CO detector is powered by 2-AA alkaline batteries located in the back of the unit, providing easy installation & no wiring, plus coverage during a power failure. The alarm is conveniently designed and portable enough for travel - simply install it on a wall or place it on a tabletop. When carbon monoxide is detected, an 85-decibel alarm will sound & a red LED will flash. A green LED indicates that the alarm is receiving power. The test-hush button allows you to test the battery operations as well as temporarily silence the low battery chirp warning. Plus, peak level memory records the last time carbon monoxide was detected or when the unit was last tested. Install a smoke detector & carbon monoxide detector on every level of your home and near bedrooms to help keep your family safe from fire & poisonous gas. UL Certified with a 10-year limited manufacturer's warranty.

Amazon.com

Kidde’s KN-COPP-LPM battery-operated carbon monoxide alarm with digital display helps to provide your home with extensive protection against the dangerous threat posed by the odorless and colorless gas. With an increasing number of state and local governments passing legislation requiring CO detectors in homes, it’s never been a better time to safeguard your family against carbon monoxide exposure.

KN-COPP-LPM
Battery-Operated
Carbon Monoxide Alarm
At a Glance:

Digital display allows for easy monitoring of CO levels
Battery operation provides best protection during power outages
Peak level memory displays the highest CO concentration since last reset
Dimensions: 4.5 inches by 2.75 inches by 1.5 inches; weighs .66 pounds with batteries
Five-year limited warranty

Kidde's KN-COPP-LPM carbon monoxide detector is a free-standing unit, adding flexibility to placement around your home. View larger Features
The KN-COPP-LPM is an essential device to help warn you and your family of dangerous carbon monoxide levels in your home. This alarm measures the exposure to carbon monoxide over time; it is designed to sound at 85 decibels at 10 feet when it detects 70 ppm (parts per million) of CO for 60 to 240 minutes, 150 ppm for 10 to 50 minutes, or 400 ppm for 4 to 15 minutes. The easily visible digital display indicates the level of CO that the unit is sensing, and it updates the status every 15 seconds for timely and accurate readings. Its free-standing design allows for attachment to a wall or placement on a counter or nightstand for convenient and comprehensive protection. The KN-COPP-LPM also includes a slide-out battery door that provides immediate access to the power source as well as a battery safeguard that makes it difficult to close the cover without batteries installed. An LED lighting system on the unit signals power levels and sourcing: the green LED will flash once every 30 seconds to indicate the alarm is operating properly when power is present, and the red LED will pulse to indicate carbon monoxide has been detected until the device is reset or the CO threat is eliminated. This device has an expected 7-year lifespan and comes equipped with a five-year manufacturer’s limited warranty.

What's in the Box
One Kidde KN-COPP-LPM battery-operated carbon monoxide alarm with digital display and three AA batteries.

The KN-COPP-LPM features an easy-to-read digital display in front and an easy-access door to the batteries in back. (Click each to enlarge)

Top Brand: Kidde

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	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart	Try again! Details Added to Cart
Price	$24.89	-32% $79.99 List: $116.99	$27.99	$125.99	$26.99	-40% $29.99 List: $49.99
Delivery	Get it as soon as Friday, May 3	Get it as soon as Friday, May 3	Get it as soon as Friday, May 3	Get it as soon as Friday, May 3	Get it as soon as Friday, May 3	Get it as soon as Friday, May 3
Customer Ratings	4.717,869	4.7991	4.7313	4.597	4.6368	4.61,770
Easy to install	4.7	4.7	4.8	4.8	4.6	4.7
Easy to read	4.7	4.7	4.7	4.8	4.7	4.6
Easy to use	4.8	—	4.8	—	4.7	4.6
Accuracy	4.5	4.6	—	—	4.6	4.6
Sold By	Amazon.com	Awesome Dealz Express	Siterlink	SITERWELL	SITERWELL	X-Sense US
power source	Battery Powered	Battery Powered	Battery Powered	Battery Powered	Battery Powered	Battery Powered
sensor type	Electrochemical	Electrochemical	Electrochemical	Electrochemical	Electrochemical	Electrochemical
style	-	Digital	—	Compact Design	Safety	Standalone Model
alarm	Audible	fire safety, electrochemical, tamper-resistant	Audible	Audible	Audible	Audible
weight	0.01 pounds	0.31 pounds	—	1.72 pounds	0.44 pounds	—

Important information

Legal Disclaimer

HNHC Merchandise Return Policy • All returns accepted • Buyer must contact us within 14 Days after receiving the item. • Refund given as Money Back. • Return shipping will be paid by The Buyer. • No restocking fee will be charged. • Additional return policy details: None

Bulb Voltage

3 volts

Customer reviews

4.7 out of 5

17,869 global ratings

How customer reviews and ratings work

Customers say

Customers like the battery life, quality, value, performance, and ease of installation of the gas smoke fire alarm. For example, they mention that it runs on standard batteries, it's trustworthy, reliable, and works as expected. They appreciate the many features for the great price.

AI-generated from the text of customer reviews

927 customers mention837 positive90 negative

Customers are satisfied with the performance of the gas smoke fire alarm. They mention that it works well, the readout and test cycle on these are functioning normal, and there are no issues yet. They also say that it's an excellent device from a well-known and reliable manufacturer.

"...Since it performed well and self tests were easy to perform, I purchased this identical replacement. Now I'm good for another 10 years!" Read more

"...Worth every penny. The batteries easily last a year. This is an excellent device, from a well-known and reliable manufacturer." Read more

"...They do have an expiration to detect properly. Very happy with the features." Read more

"...All 3 worked well...." Read more

750 customers mention721 positive29 negative

Customers find the installation of the gas smoke fire alarm to be super easy, simple, and straightforward. They appreciate the clear operating instructions and the display that is easy to read. The alarm hooks up correctly and goes in easily and snugly.

"...Since it performed well and self tests were easy to perform, I purchased this identical replacement. Now I'm good for another 10 years!" Read more

"my first one lasted at least 10 years. easy to program" Read more

"These are great for your house and garage. They are easy to install and are battery operated...." Read more

"...This has some upgraded features from our other model. It's simple to use with good instructions and a display that is easy to understand." Read more

475 customers mention358 positive117 negative

Customers like the quality of the gas smoke fire alarm. They mention that it's trustworthy, works as expected, and tests continuously. Some say that it has never gone into alarm and that it is a solid product that will sound an alarm if it detects high levels of carbon monoxide.

"...The batteries easily last a year. This is an excellent device, from a well-known and reliable manufacturer." Read more

"...can display peak level since last reset- tests continuously, alerts within 5 seconds- adjustable alert level preset to 24ppm-..." Read more

"...Also replacement is an option if ever needed, unlike most units this displays the amount detected...." Read more

"...I tested the Kidde KN-COPP-B-LPM the same way and the alarm took forever to come on about 7 and half minutes...." Read more

418 customers mention402 positive16 negative

Customers are satisfied with the value of the gas smoke fire alarm. They mention that it's a very good investment, has many features, and is inexpensive. Some say that the digital screen is worth the extra $2.

"...Worth every penny. The batteries easily last a year. This is an excellent device, from a well-known and reliable manufacturer." Read more

"...I give the winner to the Kidde and it so happen to be the least expensive...." Read more

"Good value for the money. Works as expected." Read more

"Well worth the money." Read more

317 customers mention225 positive92 negative

Customers like the battery life of the gas smoke fire alarm. They say it runs on standard batteries and the life is as advertised. Some customers also mention that the installation was simple and the device comes with three AA alkaline batteries.

"...Worth every penny. The batteries easily last a year. This is an excellent device, from a well-known and reliable manufacturer." Read more

"...They are easy to install and are battery operated.They are portable, so take one with you when you go on vacation...." Read more

"...EC50, Kidde KN-COPP-B-LPM and the X-Sense CO05S. Aegis did not come with any battery, may it did for the one reviewer because there are 2 AA slots..." Read more

"...- 10 year lifespan, chirps after 10 years to remind you to replace it- runs on one 9v battery for 3 to 5 years..." Read more

245 customers mention222 positive23 negative

Customers find the display of the gas smoke fire alarm easy to understand and read. They also say it has a clear display and features a loud alarm.

"...Display is nice to tell whats happening." Read more

"...It's simple to use with good instructions and a display that is easy to understand." Read more

"...I picked this model since it has both a digital display of CO levels and a dedicated end of life indicator...." Read more

"This is a newer version of the one we had before. The screen is helpful and shows it is working...." Read more

244 customers mention233 positive11 negative

Customers like the size of the gas smoke fire alarm. For example, they mention it's portable, easy to install, and slim. The LED screen is nice size and easy to read. It stands on its own and can be carried anywhere as desired.

"...Another benefit of the Kidde is that it is more portable, about half the size of the other two...." Read more

"...They are easy to install and are battery operated.They are portable, so take one with you when you go on vacation...." Read more

"As a Flight Attendant , this is perfect especially for international travel. I use this every trip." Read more

"...size is small enough to pack easily for us." Read more

185 customers mention169 positive16 negative

Customers like the appearance of the gas smoke fire alarm. They mention it looks great, is small, and well designed. The display is useful and adds a cool touch. It's easy to set up and use, and visually tells you things instead of having you rely on it. The product is small and white/grey, and is not beige at all. It has a nice wall mount, and it's not too obtrusive.

"Works fine and easy install. Not too obtrusive" Read more

"...It's an unobtrusive little device that can sit on your dresser or nightstand...." Read more

"...So this is of prime importance to me.I like the display (wish it was backlit, but that isn't a deal breaker) and walking past the..." Read more

"...I think the documentation, display, and design are quite good...." Read more

Reviews with images

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Top reviews from the United States

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TeeJayN

Another 10 year run!

Reviewed in the United States on April 11, 2024

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

I bought this exact same unit 10 years ago and per the instructions it stated that it had a function life of 10 years. True to form, it recently started beeping and displayed the word "END" on the screen. Since it performed well and self tests were easy to perform, I purchased this identical replacement. Now I'm good for another 10 years!

4 people found this helpful

Helpful

Handyman

Does its job

Reviewed in the United States on January 22, 2024

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

I find this a very useful safety item. I keep one in my workshop, and one in my camper van. The one in my shop went off and alerted me to a dangerous leak in my propane furnace, of which I was unaware. Worth every penny. The batteries easily last a year. This is an excellent device, from a well-known and reliable manufacturer.

5 people found this helpful

Helpful

Janis Mitchell

good product

Reviewed in the United States on April 5, 2024

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

my first one lasted at least 10 years. easy to program

One person found this helpful

Helpful

Outside the Box

I have compared 3 different detectors in this review

Reviewed in the United States on January 14, 2016

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

I am comparing 3 detectors for your shopping convenience. The Aegis EC50, Kidde KN-COPP-B-LPM and the X-Sense CO05S. Aegis did not come with any battery, may it did for the one reviewer because there are 2 AA slots where the batteries go on the package and they are empty. I think the factory tried later to save the cost of the batteries. I had to dig in my storage bins for some spares. It took two AA 2850x2=5700mAh and the battery door was extremely difficult to open at the back. The instruction was not clear on where the door separates (bad picture) and it turned out, the battery door was the entire super thin circular plate with nothing you can grab on and it looked like part of the plastic casing. I had to dig my 2 fingers into the two tiny openings of the plate to turn it and they kept on slipping. I am mechanically inclined and had opened every battery door of every product I have purchased without instruction but I had to fight to open this one. If you just look at the way the battery door was designed, you know this product was not well thought out. The LCD fogged up when I was doing the test behind my car's exhaust pipe and I could barely see the screen so I could not continue my carbon monoxide test. I tested the Kidde KN-COPP-B-LPM the same way and the alarm took forever to come on about 7 and half minutes. It came with 3 AA batteries 2850mAh x 3=8550mAh and they should last. The other detector tested was the X-Sense CO05S which came with one 9V battery 625mm AAAA x 6=3750mAh (9V battery is compose of 4 AAAA each has the capacity of 625mAh) which I know it is not going to last as long as the Kidde and the Aegis , even with the power saving circuit. However the X-Sense had a faster detection time as it only took 6 minutes for the alarm to trigger, about one and half minutes earlier than the Kidde. Unfortunately the alarm was only half as loud as the Kidde. I would say if you close the bedroom door, it would be hard to hear it. Out of the 3 detectors, I give the winner to the Kidde and it so happen to be the least expensive. Another benefit of the Kidde is that it is more portable, about half the size of the other two. The only benefit of the X-Sense is that it reacts faster and that 90 seconds faster response may safe life but the problem is that you may not hear the alarm. Hopefully I have saved you some money and headache picking a detector.

12 people found this helpful

Helpful

Alex from Texas

Great CO detector

Reviewed in the United States on April 8, 2024

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

My previous one lasted 10 years. They do have an expiration to detect properly. Very happy with the features.

One person found this helpful

Helpful

Kathleen Miller

A must for your home and garage

Reviewed in the United States on February 23, 2024

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

These are great for your house and garage. They are easy to install and are battery operated.
They are portable, so take one with you when you go on vacation. Also, today's cars can be started remotely so it's important to have a CO detector in your garage incase you start your car in your closed garage by accident.

2 people found this helpful

Helpful

E=Itimesar

Inexpensive and quick to alert.

Reviewed in the United States on February 24, 2021

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

We had a CO alarm go off in our house while running a generator outside but it did not have a display so we could not tell how high the concentration was. I ordered this and a couple of other CO monitors from Amazon and compared them.

The 3 monitors tested were:
1) AS8700A handheld
- designed for house inspection, not for continuous monitoring
- range 0-1000ppm, 1ppm resolution
- can display peak level since last reset
- tests continuously, alerts within 5 seconds
- adjustable alert level preset to 24ppm
- measures ambient temperature
- I paid $57 but it can now be found on Amazon for $35
- 3 year lifespan
- runs on 3 AAA batteries
2) Kidde KN-COPP-B-LPM
- continuous monitoring
- stands upright or can be wall mounted
- range 30-1000 ppm
- can display peak level since last reset
- tests every 15 seconds
- alerts within 60 to 240 minutes for 70ppm, 10 to 50 minutes for 150ppm, 4 to 15 minutes for 400ppm
- $22
- 7 year lifespan, chirps after 7.5 years to remind you to replace it
- runs on 3 AA batteries for approximately 2 years
3) X-Sense CO03B
- continuous monitoring
- wall or ceiling mount
- range 30-300ppm, good enough since you should leave the area immediately for levels over 200ppm
- no peak level feature
- response time is 0-3 minutes for 300ppm
- $26
- 10 year lifespan, chirps after 10 years to remind you to replace it
- runs on one 9v battery for 3 to 5 years

For testing, I filled a garbage bag with car exhaust and placed all monitors in the bag.
- The handheld alerted in 5 seconds and read over-range. It
- The Kidde alerted after 20 seconds and read 823 ppm
- The X-Sense did not alert during the first 30 second test and read 0ppm. I placed it back in the bag for 30 more seconds and it alerted and read it's maximum 300ppm.

All 3 worked well. The handheld is best for verifying detections on the other monitors and testing while walking through the house since it is instant read and not designed for continuous monitoring. I placed the Kidde downstairs since I wanted one to place on a shelf for easy access. Since the X-Sense has the longest lifespan and longest battery life, I ceiling mounted it upstairs.

44 people found this helpful

Helpful

Top reviews from other countries

Translate all reviews to English

Jehosabeat

Buena calidad, sonido bastante fuerte

Reviewed in Mexico on June 9, 2019

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

Tal cuál se describe en la foto. El botón de prueba me parece muy útil para checar su funcionamiento semal, el sonido es bastante fuerte... aunque creo que como dice en las instrucciones es necesario uno para cada piso de la casa. El precio se me hizo muy accesible y acorde a la calidad del producto.
Hasta ahora no he probado la sensibilidad del aparato, pero he encontrado como hacer la prueba en internet... lo revisaré pronto

2 people found this helpful

Translate review to English

Vijay Ramkissoon

A must have for homeowners

Reviewed in Canada on April 30, 2018

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

I have had these Kidde products before and they have lasted a very long time before they reach their "end of life." I purchased this carbon monoxide detector to replace an older Kidde model and so far it has been tested and definitely works, let's hope it never has to beep that loudly again. I recommend this Kidde carbon monoxide detector because it is battery operated and has a useful LCD screen to show relevant information. Mounting screws and batteries were included along with a manual that you should read as it has placement and function details.

One person found this helpful

Israel Alejandro Sesma Zazueta

Buen producto

Reviewed in Mexico on August 5, 2019

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

Buen producto

Translate review to English

Jeff

Seems to work well, no alarms yet.

Reviewed in Canada on May 17, 2016

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

Hasn't gone off yet, but the test beeps are extremely loud. The readout is nice, too. Apparently there's no carbon monoxide around the furnace, but It's nice to know I can check even if the levels don't get to alarm-worthy levels.

2 people found this helpful

MARIA SILVIA

Importante para seguridad

Reviewed in Mexico on April 3, 2019

Size: KN-COPP-B-LPMColor: DetectorPattern Name: DetectorVerified Purchase

Fácil de usar y seguro

One person found this helpful

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Kidde Carbon Monoxide Detector, AA Battery Powered CO Alarm with LEDs, Test-Reset Button, Low Battery Indicator, Portable

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