---
product_id: 1609238
title: "First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White"
brand: "first alert"
price: "322 zł"
currency: PLN
in_stock: true
reviews_count: 13
category: "First Alert"
url: https://www.desertcart.pl/products/1609238-first-alert-co615-dual-power-plug-in-carbon-monoxide-detector
store_origin: PL
region: Poland
---

# Backlit digital display with peak CO level memory 85 dB loud alarm for urgent alerts Dual power: plug-in + battery backup First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White

**Brand:** first alert
**Price:** 322 zł
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay plugged in, stay protected — CO safety that never sleeps!

## Quick Answers

- **What is this?** First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White by first alert
- **How much does it cost?** 322 zł with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.pl](https://www.desertcart.pl/products/1609238-first-alert-co615-dual-power-plug-in-carbon-monoxide-detector)

## Best For

- first alert enthusiasts

## Why This Product

- Trusted first alert brand quality
- Free international shipping included
- Worldwide delivery with tracking
- 15-day hassle-free returns

## Key Features

- • **Loud & Clear Alerts:** 85-decibel alarm pierces through deep sleep and across rooms to keep your family safe.
- • **Flexible Installation:** Detachable plug and 6-foot cord allow mounting at eye level for optimal monitoring and convenience.
- • **Instant CO Level Awareness:** Backlit digital display shows real-time and peak carbon monoxide concentrations at a glance.
- • **Smart Maintenance Reminders:** End-of-life chirp and low battery signals keep you ahead of safety replacements.
- • **Uninterrupted Safety Monitoring:** Dual power system ensures continuous CO detection even during power outages.

## Overview

The First Alert CO615 is a UL-listed carbon monoxide detector featuring an advanced electrochemical sensor, dual power operation (plug-in with battery backup), and a backlit digital display that shows current and peak CO levels. Its detachable plug and 6-foot cord enable flexible placement, while an 85 dB alarm ensures you’re alerted to dangerous CO concentrations. With smart end-of-life and low battery alerts, plus a 7-year limited warranty, it’s a trusted, professional-grade solution for comprehensive home CO safety.

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

Review: Convenient and confidence inspiring. - The Bottom Line: This is a highly flexible carbon monoxide detector that solves the "blocked outlet" problem with its detachable cord, while providing a clear digital interface that makes monitoring straightforward. Installation & Setup: The "Dual-Power" claim isn’t just marketing; it makes installation incredibly versatile. You can plug it directly into a standard 120V outlet like a typical sensor, but the standout feature is the detachable plug. Using the included 6-foot power cord, I was able to mount the detector at eye level on the wall while plugging it into a lower outlet behind furniture. This is a huge win for accessibility and better airflow monitoring. Visibility & Interface: The backlit digital display is a major upgrade over standard "LED-only" models. It’s easy to read even in low light, displaying current CO levels and battery status at a glance. I particularly appreciate the "Peak Level" memory feature, which lets you see if any levels were detected while you were out. Safety & Reliability: Battery Backup: It uses 2 AA batteries (included), ensuring it keeps monitoring during power outages. Loud Alarm: The 85-decibel horn is piercing enough to wake you from a deep sleep or hear from another floor. Maintenance: The front-access battery door means I don't have to unplug or unmount the unit just to swap batteries. Pros: Detachable plug allows for wall mounting or direct plug-in. Clear, backlit digital display replaces confusing beep codes. Continuous monitoring with a reliable electrochemical sensor. Cons: The display does not stay lit constantly to save power, so you have to press a button to see it clearly in pitch black. Final Verdict: If you want a reliable CO detector that doesn't dictate exactly where it must be placed based on your outlet height, the First Alert CO615 is the best option in this price range.
Review: Good product - Good price for the pkg of three. Haven't had any problems with them yet. Easy set up, just plug in.

## Features

- 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)

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B000Q5VMKG |
| Alarm | Audible |
| Batteries | 2 AAA batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #2,488 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #18 in Carbon Monoxide Detectors |
| Brand | First Alert |
| Certification | not_applicable |
| Color | White |
| Customer Reviews | 4.6 4.6 out of 5 stars (8,753) |
| Date First Available | January 1, 2008 |
| Global Trade Identification Number | 00029054000712 |
| Included Components | 2-Aa Batteries, First Alert Co615 Dual Power Carbon Monoxide Plug-In Alarm, One Carbon Monoxide Alarm, User Manual |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 10.4 ounces |
| Item model number | CO615 |
| Manufacturer | First Alert |
| Material | Non-Precious Metal |
| Number of Items | 1 |
| Operating Humidity | 10-95% RH |
| Part Number | FATCO615 |
| Pattern | Alarm |
| Power Source | Corded Electric |
| Product Dimensions | 1.7"D x 5"W x 3.4"H |
| Sensor Type | Electrochemical |
| Size | 1 pack |
| Style | Plug in Alarm with Digital Display |
| UPC | 029054000712 |
| Usage | personal |
| Voltage | 120 Volts |
| Warranty Description | 7-year Limited Warranty |

## Product Details

- **Alarm:** Audible
- **Brand:** First Alert
- **Color:** White
- **Global Trade Identification Number:** 00029054000712
- **Item Weight:** 10.4 Ounces
- **Operating Humidity:** 10-95% RH
- **Power Source:** Corded Electric
- **Product Dimensions:** 1.7"D x 5"W x 3.4"H
- **Sensor Type:** Electrochemical
- **Style:** Plug in Alarm with Digital Display

## Images

![First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White - Image 1](https://m.media-amazon.com/images/I/51Gpdw7wAdL.jpg)
![First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White - Image 2](https://m.media-amazon.com/images/I/41nc5yVr4JL.jpg)
![First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White - Image 3](https://m.media-amazon.com/images/I/5103icTxrXL.jpg)
![First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White - Image 4](https://m.media-amazon.com/images/I/71hAwlBG2vL.jpg)
![First Alert CO615 Dual-Power Plug-In Carbon Monoxide Detector with Battery Backup and Digital Display, White - Image 5](https://m.media-amazon.com/images/I/61gkNQ09yIL.jpg)

## Available Options

This product comes in different **Pattern, Size, Style** options.

## Questions & Answers

**Q: If I plug this directly into the wall does it over both outlets?  I have a nightlight in my hall where I want to place this unit.
Thanks**
A: No it will fit in the bottom leaving the top for your night light

**Q: can it detect levels of 20,30 or 40 ppm of CO?  I know alot can only detect 70 ppm of CO or above...but I'm concerned of a small CO leak of below 70.**
A: This unit probably detects CO at less than 30 ppm, but is not allowed to display that level unless a button is pushed. In this case, the peak level the alarm detected since last reset is what will show, not the current ambient level. From 30 to 70 ppm, the display can show the ambient level, but the alarm will not sound until it's been in that range for 30 days, as mentioned. At 70 ppm, the alarm is not to sound for at least an hour, and no more than 4 hours. That's UL requirements, which most codes across the US adhere to.

**Q: Why would anyone buy a 2-pack for $75.23 when they can buy two 1-packs for $59.94?**
A: I'm going out on a limb here but a two pack includes two detectors for 75.23    a single is 59.94. 

So if you want two of them you can pay 75.23 or 120.00   I have no idea why someone would spent 75.00 when they could spend 120 for the same items.   Hopefully someone will be able to answer this question.

**Q: Does this alarm work when using an extension cord or must it be plugged directly into a wall outlet?**
A: The instruction booklet that came with my First Alert carbon monoxide alarm (I do not know if I bought a "model C0615" -- my alarm has NO identifying alpha-numeric) informs me that there IS an extension cord already on the back of the alarm; it also tells how to access it.  I unplugged my alarm from the outlet, turned it back-side-up and true enough the 2 pronged plug you use to plug it into the electrical outlet is part attached to a  lightweight extension cord that I would estimate to be about 4 or 5 feet long.  The instruction booklet says that is for use by those who want to remain standing and look at the alarm "face-to-face."  Hope this helps, Fat.

## Customer Reviews

### ⭐⭐⭐⭐⭐ Convenient and confidence inspiring.
*by 1***0 on February 5, 2026*

The Bottom Line: This is a highly flexible carbon monoxide detector that solves the "blocked outlet" problem with its detachable cord, while providing a clear digital interface that makes monitoring straightforward. Installation & Setup: The "Dual-Power" claim isn’t just marketing; it makes installation incredibly versatile. You can plug it directly into a standard 120V outlet like a typical sensor, but the standout feature is the detachable plug. Using the included 6-foot power cord, I was able to mount the detector at eye level on the wall while plugging it into a lower outlet behind furniture. This is a huge win for accessibility and better airflow monitoring. Visibility & Interface: The backlit digital display is a major upgrade over standard "LED-only" models. It’s easy to read even in low light, displaying current CO levels and battery status at a glance. I particularly appreciate the "Peak Level" memory feature, which lets you see if any levels were detected while you were out. Safety & Reliability: Battery Backup: It uses 2 AA batteries (included), ensuring it keeps monitoring during power outages. Loud Alarm: The 85-decibel horn is piercing enough to wake you from a deep sleep or hear from another floor. Maintenance: The front-access battery door means I don't have to unplug or unmount the unit just to swap batteries. Pros: Detachable plug allows for wall mounting or direct plug-in. Clear, backlit digital display replaces confusing beep codes. Continuous monitoring with a reliable electrochemical sensor. Cons: The display does not stay lit constantly to save power, so you have to press a button to see it clearly in pitch black. Final Verdict: If you want a reliable CO detector that doesn't dictate exactly where it must be placed based on your outlet height, the First Alert CO615 is the best option in this price range.

### ⭐⭐⭐⭐⭐ Good product
*by A***. on January 6, 2026*

Good price for the pkg of three. Haven't had any problems with them yet. Easy set up, just plug in.

### ⭐⭐⭐⭐⭐ Report on Carbon Monoxide Detector.
*by C***S on February 13, 2026*

Review: Excellent Review Excellent Report with no problems! Al Thomas, MD

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*Product available on Desertcart Poland*
*Store origin: PL*
*Last updated: 2026-03-18*