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First Alert CO605 Plug-in Carbon Monoxide Detector with Battery Backup: 9-Volt Alkaline, No Hardwired Installation Needed
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About this item
Highlights
- Keep your family safe with this easy-to-use 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 that accurately detects carbon monoxide levels, no matter where the detector is placed in the room
- Simple to use, with a single test/silence button; 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
Description
The First Alert CO605 Plug-In Carbon Monoxide Detector helps protect your family with an electrochemical sensor and an 85-decibel alarm, and easily plugs into any standard outlet with no additional mounting necessary. It also includes a battery backup, so CO is monitored even if there's a power failure. One button silences any nuisance alarms, and also tests detector functions. And an end-of-life signal enhances your safety by letting you know when it's time to replace the unit. Keep your family safer by installing units on multiple levels and in each bedroom.
Dimensions (Overall): 3.38 Inches (H) x 4.87 Inches (W) x 2.23 Inches (D)
Weight: .51 Pounds
Package Quantity: 1
Requires Hardwired Installation: No
Battery: 1 9-Volt Alkaline
Warranty: 7 Year Limited Warranty. To obtain a copy of the manufacturer's or supplier's warranty for this item prior to purchasing the item, please call Target Guest Services at 1-800-591-3869
TCIN: 11134896
UPC: 029054013125
Item Number (DPCI): 085-14-0247
Origin: Imported
If the item details aren’t accurate or complete, we want to know about it.
Shipping details
Estimated ship dimensions: 9.74 inches length x 7.97 inches width x 2.95 inches height
Estimated ship weight: 0.76 pounds
Return details
This item can be returned to any Target store or Target.com.
This item must be returned within 90 days of the date it was purchased in store, shipped, delivered by a Shipt shopper, or made ready for pickup.
See the return policy for complete information.
Q: what is the difference between this one and the CO400
submitted by Judi - 3 years ago
A: Thank you for your question. The CO605 is a plug-in unit and the CO400 is a battery-powered only unit. If you have any additional concerns, please don't hesitate to reach out directly to our support team at First Alert at 1 (800)-323-9005.
submitted byFirstAlertProductExpert - 3 years agoBrand expert
Q: More clarity in the question: Using the First Alert Carbon Monoxide Alarm model CO606, plugged in the wall with a 9V battery installed, what does it mean when the unit makes a sharp and short beep, unevenly spaced by minutes?
submitted by rm - 4 years ago
A: Thank you for your question. This could be a number of things. Did it also flash intermittently? This unit comes with a 7 year warranty. We would need more information to further troubleshoot or replace. Please don't hesitate to reach out to us here at First Alert at 1 (800)-323-9005 to further assist.
submitted byFirstAlertProductExpert - 4 years agoBrand expert
Q: Hello, what does it mean when the detector makes a short, loud beep, spaced by minutes? It is plugged into the wall and also has a 9V working battery. Thank you
submitted by rm - 4 years ago
A: Thank you for your question. This could be a number of things. Did it also flash intermittently? This unit comes with a 7 year warranty. We would need more information to further troubleshoot or replace. Please don't hesitate to reach out to us here at First Alert at 1 (800)-323-9005 to further assist.
submitted byFirstAlertProductExpert - 4 years agoBrand expert
Q: If the light inside the detector is red, does that also mean that carbon monoxide has been detected?
submitted by Carrie - 5 years ago
A: Thank you for your question. If alarm levels of carbon monoxide are detected. The horn sounds loudly with 4 beeps, pause, 4 beeps, pause. This sequence repeats for as long as the unit is in alarm. The LED also flashes with the same pattern as the horn.
submitted byFirstAlertProductExpert - 5 years agoBrand expert
Q: What size batteries does it require
submitted by Nana - 5 years ago
A: Thank you for your question. We recommend a 9V battery, which is included with the device.
submitted byFirstAlertProductExpert - 5 years agoBrand expert
Q: Aren’t carbon monoxide detectors supposed to be placed 5 feet above the ground? If you plug this in, isn’t it too close to the floor?
submitted by Luvmybabies - 5 years ago
A: Thank you for your question. Although there is a myth that carbon monoxide is heavier than air, it's actually slightly lighter than air and it diffuses throughout the room/house evenly. According to a peer-reviewed study published in the Journal of Emergency Medicine, the installation height of your CO alarm doesn't affect the alarm's performance. When you decide where to install a carbon monoxide alarm, choose a location where the alarm will stay clean and out of the way of children or pets.
submitted byFirstAlertProductExpert - 5 years agoBrand expert
Q: What is country of made?
submitted by Ant - 5 years ago
A: Thank you for your question. This unit is made in Juarez, Mexico, and distributed in El Paso Texas.
submitted byFirstAlertProductExpert - 5 years agoBrand expert
Q: Should the red light stay on when plugged up
submitted by BigSan - 16 days ago
Q: What is the difference between C0606 and C0605?
submitted by icrazyhorse - 8 months ago
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4.5 out of 5 stars with 249 reviews
quality: 4.34 out of 5
value: 4.34 out of 5
89% would recommend
65 recommendations
5 out of 5 stars
Thumbs up graphic, would recommend
20 August, 2025Verified purchase
Be safe
Easy to Install, okay price, serves the purpose
5 out of 5 stars
Thumbs up graphic, would recommend
30 July, 2025Verified purchase
Simple and Effective
Just plug it in and you're set! I like that it also has a battery backup in case the power goes out. No hardwiring needed—great for apartments or older homes.
1 out of 5 stars
Thumbs down graphic, would not recommend
30 March, 2025Verified purchase
Awful. Lasted less than 3 months
Bought at end of December. Died mid-March. Was plugged in to a working outlet and replaced the battery. Still giving the “end of life” chirp
5 out of 5 stars
Thumbs up graphic, would recommend
30 January, 2025Verified purchase
Great product
This is the second one we have purchased. It’s easy to use, and I love that there is battery back up for extra piece of mind.
5 out of 5 stars
Thumbs up graphic, would recommend
10 January, 2025Verified purchase
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Good price and delivery time
5 out of 5 stars
Thumbs up graphic, would recommend
5 December, 2024Verified purchase
Carbon monoxide protector
Easy to use and came with battery
5 out of 5 stars
Thumbs up graphic, would recommend
28 November, 2024Verified purchase
Passed my inspection
I Thank God Target had this available
5 out of 5 stars
Thumbs up graphic, would recommend
22 October, 2024Verified purchase
Basic but does the job
Easy to set up and use. No issues this far.
5 out of 5 stars
Thumbs up graphic, would recommend
14 June, 2024Verified purchase
Good Product
This is a great price point for these units. Had to replace/upgrade several in my house and these were easy to install.
5 out of 5 stars
Thumbs up graphic, would recommend
23 March, 2024Verified purchase
Great plug in option
Easy to set up and seems to work well. Test alarm is loud as you would want.
5 out of 5 stars
Thumbs up graphic, would recommend
5 March, 2024Verified purchase
Target saves the day!
How quickly I was able to pick up and replace my unit that had stopped working. Good price too!
1 out of 5 stars
Thumbs down graphic, would not recommend
17 November, 2023Verified purchase
Malfunctioning
Do not recommend this product as it is malfunctioning. I just bought two of them and they are both making short beeps once every minute. I checked and made sure the battery it came with was secure and in place. Hopefully they will return it without the boxes.
4 out of 5 stars
Thumbs up graphic, would recommend
7 March, 2023Verified purchase
good detector
Only reason this is not a 5 as the battery door does not close smoothly. It is slighly misaligned. But it works.
5 out of 5 stars
Thumbs up graphic, would recommend
17 February, 2023
Safety first
Our house is safer with this carbon monoxide detector. Had to work a bit to open the battery compartment.
1 out of 5 stars
Thumbs down graphic, would not recommend
18 September, 2022Verified purchase
Battery compartment impossible to open
Battery compartment is impossible to open
1 reply from FirstAlertProductExpert team - 3 years ago
Thank you for your feedback, Katie. We apologize for any inconvenience. We’re here to help. We would like to talk to you further to better understand your experience. Please don’t hesitate to reach out to us at First Alert at 1 (800)-323-9005. We look forward to hearing from you.
5 out of 5 stars
Thumbs up graphic, would recommend
26 August, 2022Verified purchase
Carbon Monoxide Alarm
Easy to install. Performs as advertised.
5 out of 5 stars
Thumbs up graphic, would recommend
22 August, 2022Verified purchase
plug in carbon monoxide detector
replace of expired unit.
5 out of 5 stars
Thumbs up graphic, would recommend
21 July, 2022Verified purchase
nice
great thing to have in your house thank you 100%
5 out of 5 stars
Thumbs up graphic, would recommend
2 May, 2022Verified purchase
Carbon monoxide detector
Liked the fact this item is both a plug-in with battery backup version.
5 out of 5 stars
Thumbs up graphic, would recommend
26 February, 2022Verified purchase
Great Carbon Monoxide Detector
Exactly what I needed and reasonably priced.