why does mine chirp intertmittently

If it is a 9 volt battery, it may not be seated correctly. See the video on the first alert website, and be prepared to do some hard pushing to get the 9V battery to engage. I had 3 9V units, and 2 of the 3 seemingly required excessive pressure to get the batteries to engage. When I first thought I had the batteries installed by just closing the door, the unit chirped until I got the batteries shoved on hard.

Will the unit work without a bettery in it?

I'm putting these units into rentals. Will this work without a battery in it? If the battery runs low, the tenants usually take the whole unit down rather than change the battery - rendering the whole concept useless. This is the reason I would like to invest in "plug-in" units. However, somewhere it said it will chirp if battery is missing. Please clarify. I need a unit that will be effective, even without a battery installed.

Does the monitor plug directly into the wall socket or is there an electric cord?

No cord. The alarm plugs in directly to the outlet.

At what level of co does this alarm sound? Thank you for your time.

The following info is verbatim from the instructions that came with the unit: Actuation of the Alarm indicates the presence of carbon monoxide which can kill you. In other words, when our CO Alarm sounds, you must not ignore it! The following is not verbatim but a summary of regulatory requirements. Levels of CO that cause an alarm: at 400 ppm of CO, it must alarm between 4 and 15 minutes; at 150 ppm of CO, it must alarm between 10 and 50 minutes; at 70 ppm of CO, it must alarm between 60 and 120 minutes. The unit is designed not to alarm when expose to a constant level of 30 ppm for 30 days. Hope this has answered your question....from housewife1.

Carbon Monoxide Detector Plug In Alarm With Battery Backup Co606

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Fully operational. Shipping worldwide, on schedule.Customs & duties included in the price

Help Track order

Account Cart

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

7104 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Description

⚠️ Stay one step ahead—because safety waits for no one!

PLUG PROTECT - Instant setup with any standard outlet—no tools or mounting needed.
TRUSTED LONGEVITY - 7-year limited warranty with end-of-life signal keeps your home protected long-term.
PRECISION DETECTION - Advanced electrochemical sensor delivers the most accurate CO readings.
UNINTERRUPTED SAFETY - Battery backup ensures continuous CO monitoring even during power failures.
USER FRIENDLY CONTROL - Single test/silence button simplifies operation and nuisance alarm management.

The First Alert CO606 is a plug-in carbon monoxide detector featuring an advanced electrochemical sensor for precise detection. It includes a battery backup to maintain protection during power outages and emits a loud 85-decibel alarm when dangerous CO levels are detected. Designed for easy installation with a single test/silence button, it offers a 7-year limited warranty and end-of-life signal to ensure reliable, long-term home safety.

Specifications

ASIN	B000ND74XA
Alarm	Carbon Monoxide
Best Sellers Rank	#434 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #5 in Carbon Monoxide Detectors
Brand	First Alert
Built-In Media	Alarm, Battery
Color	White
Customer Reviews	4.7 out of 5 stars 22,781 Reviews
Enclosure Material	Plastic
Global Trade Identification Number	00029054000682
Item Dimensions D x W x H	1.38"D x 5"W x 3.4"H
Item Type Name	CO Alarm
Item Weight	4.2 Ounces
Manufacturer	First Alert
Mfr Part Number	FATCO605
Model Number	CO606
Number of Items	1
Operating Humidity	10-95% RH
Power Source	Corded Electric
Product Dimensions	1.38"D x 5"W x 3.4"H
Product Style	Plug in Alarm with Battery Backup
Sensor Type	Electrochemical
Style	Plug in Alarm with Battery Backup
UPC	029054000682
Unit Count	1.0 Count
Upper Temperature Rating	105 Degrees Fahrenheit

Reviews

S**S

24.01.2024

C**E

3.03.2026

J**R

22.10.2025

J**M

31.03.2025

V**.

20.04.2026

V**R

23.04.2026

C**.

25.02.2026

B**N

29.03.2026

C**M

11.12.2025

T**D

27.12.2025

J**I

3.08.2025

N**T

13.01.2026

M**H

29.07.2025

Common Questions

Are the products genuine and authentic?+

Yes, all products are sourced directly from authorized retailers in the US, UK, UAE and India. We maintain strict quality control processes and verify each product before shipping. All items come with applicable manufacturer warranties and are covered by our standard return policy.

How long does delivery take and is it reliable?+

Delivery times vary by destination country, typically ranging from 3-9 business days. Each order is fully trackable through our system. We handle all customs clearance and use reliable courier partners for last-mile delivery. You'll receive regular updates about your order status via email and our app.

What is Desertcart? Is it safe to order from?+

Desertcart is an international e-commerce platform operating since 2014. We securely process thousands of orders globally each day. Every product goes through our quality verification process before delivery, and we provide end-to-end order tracking, 24/7 customer support, and a comprehensive returns policy to ensure a safe shopping experience.

How is product pricing calculated?+

Our prices include the product cost, international shipping, import duties, customs clearance, and local delivery charges. We handle all customs and import procedures, ensuring there are no hidden fees upon delivery. PRO members receive additional benefits including free shipping.

Buy anything from 5,000+ international stores. One checkout price. No surprise fees. Join 2M+ shoppers on Desertcart.

7104 som

Duties & taxes included

In stock

Sold byAmazon KyrgyzstanDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

Buyer Protection · Full refund if your order doesn't arrive as described.

Desertcart purchases this item on your behalf and handles shipping, customs, and support to Kyrgyzstan.

Secure transaction

Trustpilot

TrustScore 4.5 | 7,300+ reviews

Ravi S.

I loved the variety of products available. Will definitely shop again.

2 months ago

Sneha T.

Received my product in pristine condition. Great service overall.

1 month ago

View all Trustpilot reviews

Carbon Monoxide Detector, Plug-In Alarm with Battery Backup, CO606, White, 1-Pack

Details

Details

Description

Specifications

Reviews

Common Questions