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First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White

4.6 4.6 out of 5 stars 8,002 ratings

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1 pack
Plug in Alarm with Digital Display
Alarm

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About this item

  • Keep your family safe with this digital display, plug in carbon monoxide alarm; It works with any standard outlet and also has a battery backup for continuous monitoring of Carbon Monoxide levels, even if there's a power failure
  • Features an advanced electrochemical carbon monoxide sensor; Peak level feature displays the highest concentration of carbon monoxide measured
  • A loud 85 decibel alarm sounds when Carbon Monoxide levels reach dangerous levels
  • To ensure complete protection make sure to place one on each level of your home and in each bedroom
  • 7 year limited warranty; Equipped with end of life signal chirp, so you know when it’s time to replace the unit for safety
  • All first alert CO alarms are rigorously tested to meet UL standards
  • First Alert has been the most trusted brand in home safety since launching the first residential smoke alarm in 1958 (Based on a First Alert Brand Trust Survey in February 2018)
See more product details

Customer ratings by feature

Easy to install
4.6 4.6
Battery life
4.5 4.5
Versatility
4.5 4.5
Easy to read
4.5 4.5

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First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White
FIRST ALERT First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White
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Price$43.00-31% $19.99
Typical:$28.99
$44.32-13% $59.99
List:$69.21
$46.99-10% $12.59
List:$13.99
Delivery
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Get it as soon as Sunday, Mar 24
Customer Ratings
Easy to install
4.6
4.6
4.7
4.6
4.6
4.4
Easy to read
4.5
4.6
5.0
4.4
4.6
4.2
Accuracy
4.4
4.4
4.3
4.2
3.9
Value for money
4.3
4.6
3.6
Easy to use
4.6
4.3
4.4
Sold By
Amazon.com
Amazon.com
GEALDEN
Hembisen.
Chipai
FDUIOSPF
power source
Corded Electric
Battery Powered
AC
Plug-and-play
AC
Battery Powered
sensor type
Electrochemical
Electrochemical
Electrochemical
Electrochemical
Electrochemical
Electrochemical
style
Plug in Alarm with Digital Display
Digital
3 Packs
2 PACK
Digital
alarm
Audible
Audible
Visual
Audible
Audible
Audible, Visual
weight
0.6 pounds
0.2 pounds
0.26 pounds
4.5 ounces
4.5 ounces
0.13 pounds

From the manufacturer

First Alert
What is carbon monoxide?

Common sources of Carbon Monoxide

Furniture

Dryer Vent

Chimney

What does the beep mean?

4 beeps and a pause

1 beep every minute

5 beeps every minute

Emergency: Carbon monoxide has been detected. Move to fresh air and call 911.

Low battery: It's time to replace the batteries in your carbon monoxide alarm.

End of life: It's time to replace your carbon monoxide alarm.

Recommended alarm placement

Product guides and documents

Looking for specific info?

Product information

Technical Details

Additional Information

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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First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White


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Product Description

Product Description

The FIRST ALERT CO615 dual power carbon monoxide plug in alarm alerts you to dangerous carbon monoxide. This carbon monoxide detector operates on a dual power system with battery backup for continuous monitoring, even in the event of a power outage. The backlit digital screen tells you at a glance what the carbon monoxide and power Levels Are. The Co monitor also features a convenient test and silence button and an end of life timer that lets you know when it is time to replace the unit.*ensure the outlet has power.*the battery is for back up only and is not intended to power the alarm for an Extended period of time in the absence of AC. *the alarm will light up the display briefly to indicate the unit is receiving power. *press and hold test button to ensure activation. Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can't see, smell or taste in the air.

The FIRST ALERT CO615 carbon monoxide alarm uses an electrochemical carbon monoxide sensor-the most accurate technology available. Installation is as simple as plugging it in to any wall outlet. Its easy-to-read backlit digital LED display gives you a clear read-out of current CO concentrations in parts per million. The alarm includes a battery back-up giving you peace of mind in a power outage. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The unit monitors and re-alarms if carbon monoxide levels persist sounding a loud 85-decibel horn. An audible and visual low battery signal alerts you to replace the battery and an indicator alerts you when a battery has been removed. An end-of-life alarm of three chirps alerts you to replace the unit. Two AA batteries are included. 7-year limited warranty. UL listed. --Bree Norlander

What's in the Box
One carbon monoxide alarm, two AA batteries, and user's manual.

Amazon.com

Carbon monoxide (CO) is the leading cause of accidental poisoning deaths in America, yet many people don't know they are suffering from CO poisoning until its too late. Since symptoms of CO poisoning are like the flu, you might not even know you're in danger at first. That's why a carbon monoxide alarm is an excellent way to protect your family. It can detect the CO you can't see, smell or taste in the air.

The First Alert CO615 carbon monoxide alarm uses an electrochemical carbon monoxide sensor-the most accurate technology available. Installation is as simple as plugging it in to any wall outlet. Its easy-to-read backlit digital LED display gives you a clear read-out of current CO concentrations in parts per million. The alarm includes a battery back-up giving you peace of mind in a power outage. The test/silence button both silences a non-threatening alarm or low battery warning and allows you to test the unit's functionality. The unit monitors and re-alarms if carbon monoxide levels persist sounding a loud 85-decibel horn. An audible and visual low battery signal alerts you to replace the battery and an indicator alerts you when a battery has been removed. An end-of-life alarm of three chirps alerts you to replace the unit. Two AA batteries are included. 7-year limited warranty. UL listed. --Bree Norlander

What's in the Box
One carbon monoxide alarm, two AA batteries, and user's manual

WARNING:

CHOKING HAZARD -- Small parts. Not for children under 3 yrs.

Important information

Legal Disclaimer

Item is new in box. No warranty provided by seller.

Bulb Voltage

120 volts

To report an issue with this product or seller, click here.

Customer reviews

4.6 out of 5 stars
4.6 out of 5
8,002 global ratings

Customers say

Customers like the performance, battery backup, and size of the gas smoke fire alarm. They mention that it works very well, has a battery backup for power-outages, and is small enough to cover only the bottom outlet. They are also happy with ease of use, and value. However, some customers have mixed opinions on readability, volume, and quality.

AI-generated from the text of customer reviews

620 customers mention547 positive73 negative

Customers like the performance of the gas smoke fire alarm. They say it works well, has a battery backup, and is easy to set up. Some say that the alarms seem to work ok and that it is a perfect solution for their needs.

"Best quality detector that's affordable that was purchased to replace existing units that were 10yrs old in my home...." Read more

"Always have used first alert and this works well and easy to use." Read more

"So far, the device is working as expected. Batteries came with purchase as a back up if electricity goes out." Read more

"Terrific product and easy set up" Read more

517 customers mention492 positive25 negative

Customers find the gas smoke fire alarm easy to use. They mention that it is very easy to install and use, has a usable manual, and runs a thorough self-test that displays the results.

"...Quick delivery with easy simple to follow instructions make this a great bargain !!" Read more

"Always have used first alert and this works well and easy to use." Read more

"Easy to install. Can’t tell about accuracy because no alarms for CO yet (and hopefully never)...." Read more

"Terrific product and easy set up" Read more

239 customers mention219 positive20 negative

Customers appreciate the value of the gas smoke fire alarm. They mention that it's a good value for the safety it provides.

"Best quality detector that's affordable that was purchased to replace existing units that were 10yrs old in my home...." Read more

"...Recommended, could save your life. Worth. Every. Cent." Read more

"...Good value for the safety you get." Read more

"I like this detector and feel it's priced right...." Read more

202 customers mention161 positive41 negative

Customers like the battery backup of the gas smoke fire alarm. They say it provides extra protection if the power goes out. The batteries are not depleted as long as the unit has AC power, and the backup seems to function. They like that the design allows them to have access to the battery compartment while leaving the unit. Overall, customers are satisfied with the battery back-up of the product.

"So far, the device is working as expected. Batteries came with purchase as a back up if electricity goes out." Read more

"...Quick install, and last for years..." Read more

"...Operates on AC with a battery backup (2 AAs)4) Batteries ARE included!!5) A biggie!..." Read more

"...I like that they are primarily AC powered, but also battery backed, AND the AC adapter can store in back of unit, to hang on wall, or extend the cord..." Read more

125 customers mention95 positive30 negative

Customers like the size of the gas smoke fire alarm. They mention that it is small enough to cover only the bottom outlet, has a large display, and sits okay on a table. They like that it contains a small, detachable plug that allows for easy setup and travel. Overall, customers are happy with the size and functionality of the product.

"...thank goodness, or the ease of reading it, although the print is big enough...." Read more

"It is the only detector that I have in my house. It is very decent size and very easy to install and use. I use this type for my classroom too...." Read more

"...However, it sits okay on a table, but I wish it came with a stand to help. It seems to expect you to mount it on a wall or outlet...." Read more

"...The battery compartment is tricky and the battery fit is very tight...." Read more

277 customers mention167 positive110 negative

Customers are mixed about the quality of the gas smoke fire alarm. Some mention that the build quality appears good, it is reliable, and can save your life. However, others say that it did not last the full 7 years of the warranty, the devices expire after about eight years, and the battery back up does not last as long as they hoped. They also say that the documentation is impossible to read, and that the display is garbled and the buttons are hard to use.

"...Build quality appears good with alarm that will definitely get your attention !..." Read more

"They don't last forever, but that's the way they are manufactured. This was a "new one" to replace the previous old one...." Read more

"...we're used to the Kidde design and like the red LED, but it also seems more solid (the First Alert has the seemingly fragile/flimsy cover), and has..." Read more

"Appears well made and delivered on time." Read more

161 customers mention103 positive58 negative

Customers have mixed opinions about the readability of the gas smoke fire alarm. Some mention that the display is very clear, while others say that it's difficult to read the LED message, which is very near the floor. The blue backlit display is nice and bright when illuminated, but it does have a display. Customers also say that the digital readout is really nice, but the LCD messages are somewhat mysterious and the buttons are a bit hard to push.

"The display is a good feature that saves the highest CO reading. All units worked out of the box...." Read more

"...but when plugged in to a socket the whole device is low and becomes hard to read. Still, much better than older models with no display." Read more

"...The screen is easy to read and it has a test function (it's very loud)...." Read more

"...in the unit at ground level and install it much higher, so you can read it easily, and also have the unit sense readings higher off the ground...." Read more

111 customers mention46 positive65 negative

Customers are mixed about the volume of the gas smoke fire alarm. Some mention that it is loud, while others say that the detectors have been silent. The incessant chirping is unnerving once the battery is low, forcing you to replace the battery. Some customers also mention that the alarm goes off at a muted volume and beeps every minute or so.

"...The test alarm didn't seem as loud as the Kidde's...." Read more

"...- easy to use and can sense a gas leak in 2 seconds flat - alarm is loud enough to wake up my drunk Uncle Joe after a 3 day bender !!! Woo woo" Read more

"...Tested the detector with the test button. it's LOUD! I'm pretty sure this will wake me if there's ever a high CO problem...." Read more

"...current level of CO2 in parts per million (ppm), and it also has a loud alarm that goes off if the level exceeds a healthy level...." Read more

Might have just saved our lives
5 Stars
Might have just saved our lives
I bought two of these after another cheaper carbon monoxide detector had alarmed in the middle of the night. I had read some reviews of the other carbon monoxide detector having false alarms and convinced myself it was probably a false alarm but I opened windows to air out the house.I got these two days ago and they alarmed the first night. I opened the windows and deduced that it was probably my tankless water heater which was recently installed and failed inspection. It is scheduled to be brought up to code this week.To prove my theory I made sure the central heat was off for a day and we hadn't used the clothes dryer for a few days and I put one of these detectors in the laundry room where the tankless water heater is installed. We have one of those large jacuzzi style baths in the master bathroom (hence the need to have the tankless) and we took a bath last night. When we were done the alarm was going off. I had done some minimal research before doing this test and knew that too high of a level (12,800 ppm) can kill you instantly after just 2 or 3 breaths. I had read that 400+ can be lethal. Wikipedia states 800 ppm will cause dizziness, nausea, and convulsions within 45 min and you will be insensible within 2 hours and 1600 ppm can kill you in 2 hours. So I went downstairs to see what the reading was.I held my breath and went in. 875ppm is what it read. I called 911 and the firemen came.My wife, 2 year old, and 2 month old were upstairs and in a room with the windows wide open. They came in and took their readings. They said they are not allowed to work in an environment where the levels are above 30 ppm without respirators. The windows had been open for 15 minutes and they were still getting readings over 70.Later, we compared what their professional monitor said to what the my 2nd First Alert Carbon monoxide detector was reading (remember I bought two of these). Their reading matched exactly what this unit displayed. So you can trust these devices.Please trust your device. Thats what you bought it for. Call 911. Open windows or get out of there. The long term affects of Carbon Monoxide exposure can cause heart problems, learning disabilities, and many other terrible things. I am now worried about what this has been doing to my family over the last 4 months since the water heater was installed. Like I said I have a 2 month old....I have posted a picture of the unit reading the max value from last night.
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Top reviews from the United States

Reviewed in the United States on February 12, 2024
Size: 1 packStyle: Plug in Alarm with Digital DisplayPattern Name: AlarmVerified Purchase
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Top reviews from other countries

Amazon Customer
5.0 out of 5 stars They work
Reviewed in Canada on January 8, 2023
Size: Pack of 3Style: Plug in Alarm with Digital DisplayPattern Name: AlarmVerified Purchase
L B C
5.0 out of 5 stars Simple to use and understand
Reviewed in Canada on January 11, 2019
Size: 1 packStyle: Plug in Alarm with Digital DisplayPattern Name: AlarmVerified Purchase
One person found this helpful
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David Edward Simmonds
1.0 out of 5 stars utterly useless, sold on amazon as a plug in alarm ...
Reviewed in the United Kingdom on December 16, 2014
Size: 1 packStyle: Plug in Alarm with Digital DisplayPattern Name: AlarmVerified Purchase
7 people found this helpful
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Gen_Grant WoTs
5.0 out of 5 stars It is the law in Ontario so keep your family safe.
Reviewed in Canada on August 31, 2022
Size: Pack of 3Style: Plug in Alarm with Digital DisplayPattern Name: AlarmVerified Purchase
One person found this helpful
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KFielding
4.0 out of 5 stars Four Stars
Reviewed in Canada on June 18, 2018
Size: 1 packStyle: Plug in Alarm with Digital DisplayPattern Name: AlarmVerified Purchase