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Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display

4.7 4.7 out of 5 stars 26,388 ratings

$39.00
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Purchase options and add-ons

Brand Kidde
Style Detector
Power Source Plug In
Color White
Product Dimensions 1.75"D x 3.75"W x 6.06"H
Alarm Audible
Operating Humidity 5% to 95% relative humidity, non-condensing
Upper Temperature Rating 37.8 Degrees Celsius
Sensor Type Ionization
Material ABS

About this item

  • Easy Installation - simply plug-in to a standard, 120V outlet in your home
  • 9-volt battery backup provides protection during a power outage
  • Digital LED display shows the level of carbon monoxide the CO alarm is sensing
  • 85-decibel alarm announces when carbon monoxide is detected
  • Peak Level Memory records the last time carbon monoxide was detected or when the unit was last tested
  • Test-Hush Button makes testing the detector or silencing false alarms easy
  • Extension cord (included) allows for placement on a table or shelf
  • 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 install
4.8 4.8
Accuracy
4.6 4.6
Easy to use
4.6 4.6
Easy to read
4.6 4.6

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Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display

Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display


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From the manufacturer

Kidde Nighthawk Carbon Monoxide Detector
Kidde Nighthawk Carbon Monoxide Detector
Kidde Nighthawk Carbon Monoxide Detector

Kidde Carbon Monoxide (CO) Detectors – Plug-In

CO Comparison Chart-Images_900-0076

CO + Digital Display

CO Comparison Chart-Images_900-0113

Explosive Gas + CO Alarm

CO Comparison Chart-Images_900-0280

10-Yr CO Alarm

CO Comparison Chart-Images_900-0282

10-Yr + Voice CO Alarm

CO Comparison Chart-Images_Smart CO

Smart CO Alarm

CO Comparison Chart-Images_900-0284

10-Yr + Light CO Alarm

CO Comparison Chart-Images_900-0263

CO Alarm

Customer Reviews
4.7 out of 5 stars
26,388
4.6 out of 5 stars
14,762
4.6 out of 5 stars
14,762
4.7 out of 5 stars
52
4.3 out of 5 stars
212
4.6 out of 5 stars
96
4.7 out of 5 stars
32,579
Price
$39.00 $53.08 $53.08 $68.45 $59.94 $59.99
Detection Type
Carbon Monoxide Explosive Gas, Carbon Monoxide Carbon Monoxide Carbon Monoxide Carbon Monoxide & Air Quality Carbon Monoxide Carbon Monoxide
Power Source
Plug-In; 9V Backup (included) Plug-In; 9V Backup (included) Plug-in; 10-Yr Battery Backup Plug-in; 10-Yr Battery Backup Plug-in; 10-Yr Battery Backup Plug-in; 10-Yr Battery Backup Plug-In; 2AA Backup (included)
No Battery Changes/Night Chirp
Digital Display
Peak Level Memory
Event Memory
Voice Alerts
Connects to WiFi & Kidde App
Real-Time App Notifications
Tamper Resistant
Night Light
Mounting Options
Outlet Outlet, Wall Mount, & Tabletop Outlet;90-Degree Rotating Plug Outlet;90-Degree Rotating Plug Outlet;90-Degree Rotating Plug Outlet;90-Degree Rotating Plug Outlet;90-Degree Rotating Plug
UL Listed

Looking for specific info?

Product Description

Product Description

The Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display uses electrochemical sensor technology to detect poisonous CO gas in your home and alert you by sounding an 85-decibel alarm. Setup is easy as the Kidde carbon monoxide alarm plugs into a standard, 120V AC power outlet in your home, while a 9-volt alkaline battery (included) works as a backup in the event of a power failure. When carbon monoxide is detected, the digital display shows the level of carbon monoxide the alarm is sensing and updates every 15 seconds. Peak Level Memory records the last time carbon monoxide was detected or when the unit was tested. The Smart-Hush button silences the unit for approximately 8 minutes, which is helpful when this smoke detector carbon monoxide detector combo sounds from things like routine cooking or shower steam. Extension cord (included) allows for placement on a table or shelf. Install a carbon monoxide smoke detector combo on every level of your home and near bedrooms to help keep your family safe. UL Certified with a 10-year limited manufacturer's warranty. Meets requirements of UL 2034, UL217, NFPA72, (chapter 11 2002 edition) The State of California Fire Marshal, NFPA101 (One and two family dwellings) Federal Housing Authority (FHA), Housing and Urban Development (HUD).

Amazon.com

Protect your family from the dangers of carbon monoxide (CO) exposure with the Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup and Digital Display. The Nighthawk is an easy-to-install unit that provides reliable protection against the dangers of CO. It features a digital display that shows CO levels in parts per million allowing you to see if, how, and when levels change.

KN-COPP-3 Nighthawk
Carbon Monoxide Alarm
At a Glance:

  • Plug-in unit with battery backup and digital display that shows CO level
  • Level button displays the peak CO level recorded by the alarm since it was last reset
  • Loud alarm pattern sounds when unit detects elevated CO levels
  • Direct-plug, 6-foot power cord, and table top mounting options.

    • Five-year limited warranty

    This discreet alarm is designed to fit into any standard A/C outlet in your house.
    View larger.

    The easy-read digital display updates every 15 seconds to indicate any abrupt changes or alarming trends in CO levels. View larger.Advanced Technology in an Easy-to-Install, Plug-In Design
    Designed for home use, the Kidde KN-COPP-3 Nighthawk is a UL-listed, A/C-powered, plug-in CO alarm that utilizes sophisticated electronic components and sensor technology to protect you and your family from the dangers of CO. It plugs directly into a standard A/C outlet and includes a 9-volt battery backup that provides continuous monitoring of CO levels--even during power outages.

    About Carbon Monoxide: The Silent Killer
    The leading cause of accidental poisoning deaths in North America, carbon monoxide (CO) is often referred to as the silent killer because it's odorless, tasteless, and invisible. Carbon monoxide poisoning can come about via a number of sources, including everyday items and appliances in your home or office. And because symptoms of CO poisoning mimic the flu or other common illnesses it can often go undiagnosed.

    Audible Alarm Pattern Alerts you to Elevated CO Levels
    When placed on every level of your home, alarms like the KN-COPP-3 Nighthawk can help protect everyone in the house from CO exposure by giving you an unmistakable signal when levels have reached an unhealthy point. If unhealthy levels are detected, the alarm will emit four quick audible beats every five seconds until either levels decrease or the reset button is pressed.

    Easy-to-Read Digital Display Shows CO Levels
    The KN-COPP-3 Nighthawk is unique among traditional CO alarms because of its digital display. This display clearly shows levels of CO that the unit has detected and stored-- from 30 to 999 ppm--and it updates every 15 seconds to indicate any abrupt changes or alarming trends. The display also shows the peak CO level recorded by the alarm since it was last reset or unplugged.

    LED Shows Sensor Status
    With the KN-COPP-3 Nighthawk, you never have to wonder if the sensor is functioning properly. A blinking dot in the lower right-hand corner of the display denotes normal operation, so you can trust that it's working. In addition, you can test alarm function by pressing the test/reset button at any time to verify that the horn and electric circuitry are operating properly.

    Convenient Mounting Options
    The KN-COPP-3 Nighthawk has a low-profile design that makes it suitable for any room in your home. The detector can be plugged into any standard A/C outlet; it's plug can be snapped into the back of the unit and can be rotated so the alarm remains vertical, independent of whether the electrical socket is mounted vertically or horizontally. In addition, the alarm comes with a 6-foot extension cord, so the unit can be plugged into the wall outlet and then placed on a table or shelf. For the most thorough protection, place an alarm on every level of your home.

    The UL-listed Kidde KN-COPP-3 Nighthawk has a seven-year life and is backed by a five-year limited warranty.

    About Kidde: A UTC Fire and Security Brand
    Renowned for global leadership in fire detection and suppression, Kidde provides solutions ranging from portable fire extinguishers to advanced industrial controls such as flame detection and explosion suppression systems. Kidde is a UTC Fire and Security brand, with a history that's rich with innovations, from the patent of the Chubb Detector Lock in 1818 to the development of the world's first wireless networked smoke detectors in 2004.

    What's in the Box
    Kidde KN-COPP-3 Nighthawk CO Alarm, 9-volt battery, mounting hardware, and installation guide.



    Keep your family safe by placing alarms and extinguishers in each area of the house, and by having a fire escape plan. Click here for a detailed image.

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Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display
Kidde Carbon Monoxide Detector, Plug In Wall with 9-Volt Battery Backup, Digital LED Display
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Price$39.00$28.99$26.99$59.99$27.79$46.99
Delivery
Get it as soon as Thursday, May 16
Get it as soon as Thursday, May 16
Get it as soon as Thursday, May 16
Get it as soon as Thursday, May 16
Get it as soon as Thursday, May 16
Customer Ratings
Easy to install
4.8
4.6
4.7
4.6
4.5
4.7
Accuracy
4.6
4.4
4.4
4.3
4.1
4.2
Easy to read
4.6
4.6
4.6
4.5
4.4
4.6
Easy to use
4.6
4.5
4.6
4.4
4.3
Value for money
4.6
4.3
3.6
Sold By
Beauty & Nutrition
Amazon.com
KH Alert
Hembisen.
GEALDEN
Chipai
power source
Plug In
Battery Powered
AC
Plug-and-play
AC
AC
sensor type
Ionization
Electrochemical
Electrochemical
Electrochemical
Electrochemical
Electrochemical
style
Detector
Digital
Modern
3 Packs
Compact
2 PACK
alarm
Audible
Audible
Audible
Audible
Audible
Audible
operating humidity
5% to 95% relative humidity, non-condensing
95 percent
95 percent
weight
0.2 pounds
4.5 ounces
0.22 pounds
4.5 ounces

Important information

Ingredients

MANUFACTURED BY KIDDE WITH NIGHTHAWK TECHNOLOGY

Legal Disclaimer

New in open box

Brightness

1 lm

Color Temperature

1 °C

Wattage

1 KW

Bulb Voltage

120 volts

Customer reviews

4.7 out of 5 stars
4.7 out of 5
26,388 global ratings

Customers say

Customers like the quality, value, and ease of installation of the gas smoke fire alarm. For example, they mention it's functional, easy to install, and has a digital readout. Customers are also impressed with the readout, saying it'll provide some peace of mind.

AI-generated from the text of customer reviews

1,804 customers mention1,461 positive343 negative

Customers like the quality of the gas smoke fire alarm. They mention it's functional, works fine out of the box, and is dependable. Some say it has an LED display and is user-friendly. Overall, most are satisfied with the product's quality and durability.

"...alarm utilizes sophisticated electronic components and unmatched sensor technology to protect you and your family from the dangers of CO...." Read more

"Kiddie CO detectors are great detectors, as per my years of use and as tested by major consumer testing organizations...." Read more

"Works great." Read more

"Much better quality than the ones in the big box stores. Well-worth the price." Read more

820 customers mention792 positive28 negative

Customers find the installation of the gas smoke fire alarm to be easy. They mention that it's easy to setup and use, with a large bright readable CO concentration. They also appreciate the ability to just plug it in and not running off the battery. Customers also appreciate that the product has many different configurations for how you can plug it.

"...Very simple to use and displays basic, yet useful information...." Read more

"...This alarm is easily installed in any of your AC wall outlets...." Read more

"...I recommend buying it. Easy to install and read." Read more

"...It is well lit, easy to read the number and is very loud. It’s simple to set up." Read more

441 customers mention387 positive54 negative

Customers like the value of the gas smoke fire alarm. They mention that it's a worthwhile purchase, and it'll provide cheap life insurance for you and your family. They appreciate the easy to read display, and the battery backup.

"Much better quality than the ones in the big box stores. Well-worth the price." Read more

"...The price was good also, as I got two for less than what it would have cost me at a hardware store." Read more

"...These Kidde brand units were available at a great price and were very similar to the ones we had that finally failed after many years...." Read more

"This is my second one because the first one saved my life. Absolutely worth the money" Read more

184 customers mention172 positive12 negative

Customers find the gas smoke fire alarm very simple to read and easy to install. They say it explains things well, is dependable, and user-friendly. Customers also mention that the manual is detailed and allows for many options.

"...Easy-to-Read Digital Display Shows CO LevelsThe KN-COPP-3 Nighthawk is unique among traditional CO alarms because of its digital display...." Read more

"...Hoping this one does as well. It is well lit, easy to read the number and is very loud. It’s simple to set up." Read more

"Nice product. Easy to read, and I've never heard it go off (and that's a good thing)." Read more

"Easy setup & large display. I like the capability of just plugging it in and not running off the battery. Comforting to have in my home." Read more

147 customers mention147 positive0 negative

Customers like the readout of the gas smoke fire alarm. They say it has a digital display that shows the level of CO2. Some appreciate the LCD display with a current reading that provides some peace of mind.

"...Very simple to use and displays basic, yet useful information...." Read more

"So I got this because I liked that it was digital and a plug in but with a battery back-up just in case the power goes out...." Read more

"Wonderful alarm in terms of size, visibility, and ease of use. If alarm IS triggered, ear-splitting sound!..." Read more

"...a loud alarm that is impossible to ignore, and the digital display shows real-time CO levels, allowing us to monitor our indoor air quality...." Read more

142 customers mention137 positive5 negative

Customers are satisfied with the protection provided by the gas smoke fire alarm. They mention that it's the best way to stay safe, it makes them feel safer in the home, and it'll protect everyone in the house from CO exposure.

"...home, alarms like the KN-COPP-3 Nighthawk can help protect everyone in the house from CO exposure by giving you an unmistakable signal when levels..." Read more

"I had the very same co2 monitor for precisely ten years. Safe reliable model.It chirped when it was used up...." Read more

"Great product for protection" Read more

"Works great for safety from carbon monoxide" Read more

132 customers mention132 positive0 negative

Customers like the plug of the gas smoke fire alarm. They say it can plug directly into an outlet and has a battery backup. Some customers like that it can be plugged in or not, and that it includes a 9-volt battery backup that provides power if the power goes out. They also like that the units can be mounted directly to an outlet or pull out the cord and mount it on the wall.

"...It plugs directly into a standard A/C outlet and includes a 9-volt battery backup that provides continuous monitoring of CO levels--even during..." Read more

"...They have a removable AC wall plug with a long cable for locating the sensing unit remotely from the AC plug, if needed." Read more

"...1. Location:The unit can be plugged into any outlet or run off a 5' power cord and set on a counter top...." Read more

"...Setting up this detector was a breeze. The plug-in design made it simple to install in my home, and the 9-volt battery backup provides peace of mind..." Read more

396 customers mention199 positive197 negative

Customers are mixed about the battery life of the gas smoke fire alarm. Some mention that it has a back up battery in case of power failure, while others say that it only has receptacle and a limited service life of about 10 years.

"...directly into any standard 110-volt power outlet and it has a 9-volt battery backup, battery included...." Read more

"...One had approximately 3 years of useful life and the other only months (see attached photos)." Read more

"...this because I liked that it was digital and a plug in but with a battery back-up just in case the power goes out...." Read more

"...The door covering the battery is difficult to remove. There are no instructions about installing the battery...." Read more

Quality CO detector. Worthwhile investment.
5 Stars
Quality CO detector. Worthwhile investment.
Quality Kidde brand CO detector. I replaced my original one with this identical one after 10 years of service, when it finally beeped and showed "END" in the display, which renders it useless, which is by design.Ironically, I never had any CO issues or alerts, until about a few months before its 10th anniversary in service.My home's natural gas boiler was over 25 years old, and begin leaking CO from incomplete combustion issues. This Kidde CO detector audibly alerted me and displayed the current CO level as well as the maximum CO level that it had recorded.Very simple to use and displays basic, yet useful information. I was able to open the windows and ventilate my house to prevent the excess CO buildup from harming us, thanks to this CO detectors audible & visual alerts.Hope they're still making this model 10 years from now, when I will need another one, or if I decide to move and want to purchase a new one. It's certainly not the cheapest CO unit on the market, but it's a good value for the money.Oh, it plugs directly into any standard 110-volt power outlet and it has a 9-volt battery backup, battery included. Although they recommend you replace the 9V backup battery every few years, I never replaced mine, and it was still almost as good as the day it was installed.My Kidde CO detector is plugged into an outlet in our upstairs hallway just outside of our bedroom. Fortunately, it also fit perfectly next to (below) my plug-in doorbell, which was a huge plus!I'm planning on installing one in the basement, near the gas boiler as well. Should have done that years ago, as we would have likely received an earlier "heads-up" that there was a combustion problem with the boiler.One last note: You can remote wall-mount this unit also. Cool feature!If you look at the last picture that I posted with this review, you can see that when the rear access cover is removed to access the backup battery, there is extra cord stored on the opposite side of the battery.The connected main power source plug can be easily removed and relocated/extended, via the corded connection, in order to have the CO detector located somewhere other than directly plugged into the power source.There is also a handy little clear plastic packet included, containing two wood/mounting screws and two wall mount plastic expanding inserts. (Not shown in picture.)Just can't say enough good stuff about this unit. Very pleased with it!
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Top reviews from the United States

Reviewed in the United States on April 28, 2024
Size: 1 PackStyle: DetectorVerified Purchase
Quality Kidde brand CO detector. I replaced my original one with this identical one after 10 years of service, when it finally beeped and showed "END" in the display, which renders it useless, which is by design.

Ironically, I never had any CO issues or alerts, until about a few months before its 10th anniversary in service.

My home's natural gas boiler was over 25 years old, and begin leaking CO from incomplete combustion issues. This Kidde CO detector audibly alerted me and displayed the current CO level as well as the maximum CO level that it had recorded.

Very simple to use and displays basic, yet useful information. I was able to open the windows and ventilate my house to prevent the excess CO buildup from harming us, thanks to this CO detectors audible & visual alerts.

Hope they're still making this model 10 years from now, when I will need another one, or if I decide to move and want to purchase a new one. It's certainly not the cheapest CO unit on the market, but it's a good value for the money.

Oh, it plugs directly into any standard 110-volt power outlet and it has a 9-volt battery backup, battery included. Although they recommend you replace the 9V backup battery every few years, I never replaced mine, and it was still almost as good as the day it was installed.

My Kidde CO detector is plugged into an outlet in our upstairs hallway just outside of our bedroom. Fortunately, it also fit perfectly next to (below) my plug-in doorbell, which was a huge plus!

I'm planning on installing one in the basement, near the gas boiler as well. Should have done that years ago, as we would have likely received an earlier "heads-up" that there was a combustion problem with the boiler.

One last note: You can remote wall-mount this unit also. Cool feature!
If you look at the last picture that I posted with this review, you can see that when the rear access cover is removed to access the backup battery, there is extra cord stored on the opposite side of the battery.
The connected main power source plug can be easily removed and relocated/extended, via the corded connection, in order to have the CO detector located somewhere other than directly plugged into the power source.
There is also a handy little clear plastic packet included, containing two wood/mounting screws and two wall mount plastic expanding inserts. (Not shown in picture.)

Just can't say enough good stuff about this unit. Very pleased with it!
Customer image
AJ
5.0 out of 5 stars Quality CO detector. Worthwhile investment.
Reviewed in the United States on April 28, 2024
Quality Kidde brand CO detector. I replaced my original one with this identical one after 10 years of service, when it finally beeped and showed "END" in the display, which renders it useless, which is by design.

Ironically, I never had any CO issues or alerts, until about a few months before its 10th anniversary in service.

My home's natural gas boiler was over 25 years old, and begin leaking CO from incomplete combustion issues. This Kidde CO detector audibly alerted me and displayed the current CO level as well as the maximum CO level that it had recorded.

Very simple to use and displays basic, yet useful information. I was able to open the windows and ventilate my house to prevent the excess CO buildup from harming us, thanks to this CO detectors audible & visual alerts.

Hope they're still making this model 10 years from now, when I will need another one, or if I decide to move and want to purchase a new one. It's certainly not the cheapest CO unit on the market, but it's a good value for the money.

Oh, it plugs directly into any standard 110-volt power outlet and it has a 9-volt battery backup, battery included. Although they recommend you replace the 9V backup battery every few years, I never replaced mine, and it was still almost as good as the day it was installed.

My Kidde CO detector is plugged into an outlet in our upstairs hallway just outside of our bedroom. Fortunately, it also fit perfectly next to (below) my plug-in doorbell, which was a huge plus!

I'm planning on installing one in the basement, near the gas boiler as well. Should have done that years ago, as we would have likely received an earlier "heads-up" that there was a combustion problem with the boiler.

One last note: You can remote wall-mount this unit also. Cool feature!
If you look at the last picture that I posted with this review, you can see that when the rear access cover is removed to access the backup battery, there is extra cord stored on the opposite side of the battery.
The connected main power source plug can be easily removed and relocated/extended, via the corded connection, in order to have the CO detector located somewhere other than directly plugged into the power source.
There is also a handy little clear plastic packet included, containing two wood/mounting screws and two wall mount plastic expanding inserts. (Not shown in picture.)

Just can't say enough good stuff about this unit. Very pleased with it!
Images in this review
Customer image Customer image Customer image Customer image
Customer imageCustomer imageCustomer imageCustomer image
Reviewed in the United States on October 15, 2023
Size: 1 PackStyle: DetectorVerified Purchase
Installation and Setup :
Setting up this detector was a breeze. The plug-in design made it simple to install in my home, and the 9-volt battery backup provides peace of mind in case of a power outage. The digital LED display is clear and easy to read, making it user-friendly for anyone, even those who are not tech-savvy.

Reliability:
This carbon monoxide detector has been reliable in alerting my family to potential dangers. It has a loud alarm that is impossible to ignore, and the digital display shows real-time CO levels, allowing us to monitor our indoor air quality. It's a reassuring feeling to know that this detector is on guard 24/7.

Design and Build Quality:
The Kidde Carbon Monoxide Detector is compact and unobtrusive, fitting seamlessly into any room. It doesn't interfere with our decor and doesn't draw unnecessary attention. The build quality seems sturdy, and the device appears to be durable enough to last for a long time.

Value for Money:
While this detector may be slightly pricier compared to basic models, the added features and reliability make it worth the investment. It's a small price to pay for the safety and peace of mind it provides.

In conclusion, the Kidde Carbon Monoxide Detector with Plug-In Wall and 9-Volt Battery Backup, featuring a Digital LED Display, is a dependable and user-friendly device that effectively protects my family from the silent threat of carbon monoxide. Its ease of installation, reliability, unobtrusive design, and value for money make it a worthwhile purchase. I'm withholding one star only because it could have some additional features, such as smartphone connectivity for remote monitoring. Nevertheless, I highly recommend this product to anyone looking to enhance the safety of their home.
11 people found this helpful
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Reviewed in the United States on April 19, 2024
Size: 1 PackStyle: DetectorVerified Purchase
This is the second one of these we bought as we left the old one with new homeowners when we sold our house. That one lasted 7 years and was still going strong. Hoping this one does as well. It is well lit, easy to read the number and is very loud. It’s simple to set up.
Reviewed in the United States on April 9, 2024
Size: 1 PackStyle: DetectorVerified Purchase
Kiddie CO detectors are great detectors, as per my years of use and as tested by major consumer testing organizations. This issue I have with the two I recently purchased as new is, I was sent two "new" in packaging but they were manufactured in 2014 and 2017 with a 10 year useful life from the date of manufacturing. Is someone clearing out their old stock and selling it as new? One had approximately 3 years of useful life and the other only months (see attached photos).
Customer image
4.0 out of 5 stars These are great CO detectors, when they are not years old but sold as new.
Reviewed in the United States on April 9, 2024
Kiddie CO detectors are great detectors, as per my years of use and as tested by major consumer testing organizations. This issue I have with the two I recently purchased as new is, I was sent two "new" in packaging but they were manufactured in 2014 and 2017 with a 10 year useful life from the date of manufacturing. Is someone clearing out their old stock and selling it as new? One had approximately 3 years of useful life and the other only months (see attached photos).
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2 people found this helpful
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Reviewed in the United States on April 24, 2024
Size: 1 PackStyle: DetectorVerified Purchase
Nice product. Easy to read, and I've never heard it go off (and that's a good thing).
Reviewed in the United States on March 11, 2024
Size: 1 PackStyle: DetectorVerified Purchase
Wonderful alarm in terms of size, visibility, and ease of use. If alarm IS triggered, ear-splitting sound! When first installed, alarm will sound as it runs through cycle before setting to zero. VERY happy with purchase as long as it keeps reading "0," since carbon monoxide poisoning is rather often in the news these days. Gives peace of mind.
2 people found this helpful
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Reviewed in the United States on May 6, 2024
Size: 1 PackStyle: DetectorVerified Purchase
Works great.
Reviewed in the United States on April 23, 2024
Size: 1 PackStyle: DetectorVerified Purchase
I assume it's working, makes a loud beep on test

Top reviews from other countries

Mrs Stella Nicholson
1.0 out of 5 stars Did not work
Reviewed in the United Kingdom on September 1, 2021
Size: 1 PackStyle: DetectorVerified Purchase
I have a boiler in one of the bed rooms so thought it was important to have a good alarm .put battery in plugged it in .Reading came up as "0".The next morning it did intermittent bleep I went to check it the battery was flat the plug was red hot ,fire hazard so I sent it back cost me £12.75 to send it to Spain !!!
Fred lorusso
5.0 out of 5 stars good product
Reviewed in Canada on January 3, 2020
Size: 6 PackStyle: DetectorVerified Purchase
Good product (i have used it before as well) and i appreciated that they came with batteries for the back up feature.
Matt & Kim
4.0 out of 5 stars They seem good, a couple were banged up from shipping but ...
Reviewed in Canada on April 15, 2018
Size: 6 PackStyle: DetectorVerified Purchase
They seem good, a couple were banged up from shipping but they still work. All of them were manufactured well over a year ago... so only time will tell if they still last ten years or not.
4 people found this helpful
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Don
1.0 out of 5 stars poor quality control.
Reviewed in Canada on January 14, 2017
Size: 6 PackStyle: DetectorVerified Purchase
Two of the 12 packages were missing the battery pack and the battery Holder. Also missing was the back cover....
One person found this helpful
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