---
product_id: 14168170
title: "FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features"
brand: "first alert"
price: "7274 kr"
currency: ISK
in_stock: true
reviews_count: 9
category: "First Alert"
url: https://www.desertcart.is/products/14168170-first-alert-carbon-monoxide-alarm-brk-co250-battery-operated-carbon
store_origin: IS
region: Iceland
---

# 9V battery powered for easy install Electrochemical sensor for precise CO detection Two silence modes for alarm & low battery FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features

**Brand:** first alert
**Price:** 7274 kr
**Availability:** ✅ In Stock

## Summary

> 🚨 Stay safe, stay savvy — the CO alarm that works as hard as you do!

## Quick Answers

- **What is this?** FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features by first alert
- **How much does it cost?** 7274 kr with free shipping
- **Is it available?** Yes, in stock and ready to ship
- **Where can I buy it?** [www.desertcart.is](https://www.desertcart.is/products/14168170-first-alert-carbon-monoxide-alarm-brk-co250-battery-operated-carbon)

## 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

- • **Trusted Accuracy:** State-of-the-art electrochemical sensor ensures the most reliable carbon monoxide detection available.
- • **Compact & Compliant:** Sleek low-profile design meets UL2034, NFPA 720, and ICC codes—safety that fits your modern lifestyle.
- • **Smart Silence Control:** Dual silence features let you mute nuisance alarms and low-battery chirps for up to 8 hours, reducing stress and noise.
- • **Effortless Installation:** Battery-powered with included 9V battery and mounting hardware—no wiring needed, perfect for any space.
- • **Tamper-Resistant Security:** Locking pin prevents battery removal, ideal for shared living spaces like apartments and dorms.

## Overview

The FIRST ALERT CO250 is a battery-operated carbon monoxide alarm featuring a highly accurate electrochemical sensor, an 85dB alarm, and two silence functions to mute alarms and low-battery chirps. Designed for easy wall or ceiling mounting with included hardware, it includes tamper-resistant features and complies with major safety standards, making it ideal for residential and institutional use. Its compact design and hassle-free installation provide reliable, no-fuss protection against carbon monoxide hazards.

## Description

Product Description BRK Model CO250 is a single station carbon monoxide alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories, and other multifamily dwellings as defined in standard NFPA 101. Model CO250 has been fully tested and complies with, UL2034, NFPA 720, and NFPA 101 and other agencies that model their codes after the above agencies. It meets building codes where battery operated carbon monoxide alarms with silence are required and with model building codes published by the ICC. BRK Model CO250 is a state of the art carbon monoxide alarm designed to provide early warning of the presence of carbon monoxide. It features an electrochemical carbon monoxide sensor, an 85dB horn, a full function test switch and a red LED light that indicates DC power or alarm. The CO250B features a 9V alkaline battery and the CO250LB a 9V long life lithium battery. This alarm has two silence features. Low Battery Silence: Temporarily silence the low battery chirp for up to eight hours. Alarm Silence: Silence alarm for several minutes. It also features a tamper resistant locking pin that locks alarm cover to prevent removal of battery. Perfect for apartment, dormitory or hotel applications. The compact, low profile design complements any décor. Battery installation and removal can occur while the unit is mounted to the ceiling or wall via the hinged cover. When voltage drops to a pre-set warning level, the horn will “chirp” approximately once per minute to indicate a fresh battery is needed. To insure the battery is always replaced properly, the cover is designed to resist closing when the battery is missing. Designed for wall or ceiling mounting. Includes mounting anchors and screws. From the Manufacturer BRK Model CO250 is a single station carbon monoxide alarm specifically designed for residential and institutional applications including sleeping rooms of hospitals, hotels, motels, dormitories, and other multifamily dwellings as defined in standard NFPA 101. Model CO250 has been fully tested and complies with, UL2034, NFPA 720, and NFPA 101 and other agencies that model their codes after the above agencies. It meets building codes where battery operated carbon monoxide alarms with silence are required and with model building codes published by the ICC. BRK Model CO250 is a state of the art carbon monoxide alarm designed to provide early warning of the presence of carbon monoxide. It features an electrochemical carbon monoxide sensor, an 85dB horn, a full function test switch and a red LED light that indicates DC power or alarm. The CO250B features a 9V alkaline battery and the CO250LB a 9V long life lithium battery. This alarm has two silence features. Low Battery Silence: Temporarily silence the low battery chirp for up to eight hours. Alarm Silence: Silence alarm for several minutes. It also features a tamper resistant locking pin that locks alarm cover to prevent removal of battery. Perfect for apartment, dormitory or hotel applications. The compact, low profile design complements any décor. Battery installation and removal can occur while the unit is mounted to the ceiling or wall via the hinged cover. When voltage drops to a pre-set warning level, the horn will “chirp” approximately once per minute to indicate a fresh battery is needed. To insure the battery is always replaced properly, the cover is designed to resist closing when the battery is missing. Designed for wall or ceiling mounting. Includes mounting anchors and screws.

Review: Reliable, Easy-to-Use Carbon Monoxide Alarm - Reliable, Easy-to-Use Carbon Monoxide Alarm This First Alert battery-operated carbon monoxide alarm is a straightforward, dependable device that provides peace of mind. Setup was simple—just pop in the included 9-volt battery, mount it on the wall, and it’s ready to go. I like that it’s lightweight and doesn’t require any hardwiring, so it’s perfect for areas where I don’t want to run electrical connections, like a basement or garage. The two silence features are handy. One quiets nuisance alarms (for example, if it gets triggered by something minor), and the other lets you silence the low-battery chirp long enough to replace the battery without the constant beeping. That’s a thoughtful touch and keeps it from being frustrating. It’s not a fancy smart device—no digital readout, no app connectivity—but that’s part of the appeal. Less complexity means less to go wrong. It does exactly what it’s supposed to do: detect dangerous carbon monoxide levels and alert you with a loud alarm. Something to keep in mind: because it’s battery-powered, you’ll need to replace the battery regularly, and like all CO detectors, the unit itself has a limited lifespan (about 5–7 years before replacement). Bottom line: A dependable, no-frills carbon monoxide alarm that’s easy to install and use, ideal for anyone who wants straightforward protection without extra bells and whistles.
Review: Great Product - Easy to install, works Great!!

## Features

- HIGHEST QUALITY, most accurate electrochemical co sensor technology
- CONVENIENT, end of life chirping signal
- HELPFUL, 2 silence features that silence both alarm and low-battery chirp
- FEATURES, 9-Volt Battery and all necessary mounting hardware
- Faster turnarounds on job sites with the easy-to-install, most-trusted alarms in home safety
- Electrochemical CO Sensor is the most accurate technology available
- Two Silence Features Silence Low Battery Chirp For up to 8 Hours
- End of Life Signal
- Tamper Resistant Locking Pin Locks Alarm Cover to Prevent Removal of Battery
- 9V Battery Included

## Technical Specifications

| Specification | Value |
|---------------|-------|
| ASIN | B0039QEV4S |
| Alarm | Visual |
| Batteries | 1 9V batteries required. (included) |
| Batteries Included? | Yes |
| Batteries Required? | Yes |
| Battery Cell Type | Alkaline |
| Best Sellers Rank | #31,301 in Tools & Home Improvement ( See Top 100 in Tools & Home Improvement ) #76 in Carbon Monoxide Detectors |
| Brand | First Alert |
| Color | White |
| Customer Reviews | 4.7 4.7 out of 5 stars (2,035) |
| Date First Available | February 24, 2010 |
| Finish | No Finish |
| Global Trade Identification Number | 00029054003928 |
| Included Components | Electrical & Heating;Rough Electrical;electrical-timers |
| Is Discontinued By Manufacturer | No |
| Item Package Quantity | 1 |
| Item Weight | 6.2 ounces |
| Item model number | CO250B |
| Manufacturer | First Alert |
| Material | Carbon |
| Mounting Type | Plate Mount |
| Number Of Pieces | 1 |
| Number of Items | 1 |
| Part Number | CO250B |
| Pattern | Detector |
| Power Source | Battery Powered |
| Product Dimensions | 1.6"D x 4.25"W x 4.25"H |
| Sensor Type | Electrochemical |
| Size | 1-Pack |
| Sound Level | 85 Decibels |
| Style | 1 Pack |
| UPC | 029054003928 |
| Voltage | 120 Volts |
| Warranty Description | 7 Year Limited Warranty |

## Product Details

- **Alarm:** Visual
- **Brand:** First Alert
- **Color:** White
- **Global Trade Identification Number:** 00029054003928
- **Item Weight:** 6.24 ounces
- **Material:** Carbon
- **Power Source:** Battery Powered
- **Product Dimensions:** 1.6"D x 4.25"W x 4.25"H
- **Sensor Type:** Electrochemical
- **Style:** 1 Pack

## Images

![FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features - Image 1](https://m.media-amazon.com/images/I/31SKK5oH+PL.jpg)
![FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features - Image 2](https://m.media-amazon.com/images/I/418fXVCh0cL.jpg)
![FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features - Image 3](https://m.media-amazon.com/images/I/41jVErWZ+hL.jpg)
![FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features - Image 4](https://m.media-amazon.com/images/I/41vdr1DzhYL.jpg)
![FIRST ALERT Carbon Monoxide Alarm | BRK CO250 Battery Operated Carbon Monoxide Detector With 9-Volt Battery & Two Silence Features - Image 5](https://m.media-amazon.com/images/I/51OBXdDOwIL.jpg)

## Questions & Answers

**Q: Will this detect propane gas? Lookin to install in my travel trailer**
A: no, you will need a separate detector for that. LP gas is detected near the floor of a RV. Carbon Monoxide rises and is detected near the ceiling. My Travel Trailer had a carbon monoxide detector near the bed room on the wall near the ceiling, a LP detector in the kitchen near the floor and a smoke detector on the ceiling between the kitchen and living area.

**Q: This detector cannot be used if temperatures are below 40f or above 100f.  what detectors are available that can be used below 40f and above 100f?**
A: Thank you for your question. Our alarms are manufactured to be used in the home, in living areas. Most homes would be inconsistent with temperatures below 40 or higher than 100 degrees. If you're using this in a camper/trailer etc- you should keep it in your home when the camper/trailer is in storage not being used. Consistent extreme temps can affect the sensors, components & battery life.

**Q: is this detector certified for use in rv's ?**
A: I see RV's use unconditioned CO detectors that aren't temperature controlled. I wouldn't use it in an RV.

**Q: Can I use it as a portable co detector? Going on a trip from one hotel to another and never mounting it**
A: It is battery operated so I don't see why you can't take it with you

## Customer Reviews

### ⭐⭐⭐⭐⭐ Reliable, Easy-to-Use Carbon Monoxide Alarm
*by E***S on August 30, 2025*

Reliable, Easy-to-Use Carbon Monoxide Alarm This First Alert battery-operated carbon monoxide alarm is a straightforward, dependable device that provides peace of mind. Setup was simple—just pop in the included 9-volt battery, mount it on the wall, and it’s ready to go. I like that it’s lightweight and doesn’t require any hardwiring, so it’s perfect for areas where I don’t want to run electrical connections, like a basement or garage. The two silence features are handy. One quiets nuisance alarms (for example, if it gets triggered by something minor), and the other lets you silence the low-battery chirp long enough to replace the battery without the constant beeping. That’s a thoughtful touch and keeps it from being frustrating. It’s not a fancy smart device—no digital readout, no app connectivity—but that’s part of the appeal. Less complexity means less to go wrong. It does exactly what it’s supposed to do: detect dangerous carbon monoxide levels and alert you with a loud alarm. Something to keep in mind: because it’s battery-powered, you’ll need to replace the battery regularly, and like all CO detectors, the unit itself has a limited lifespan (about 5–7 years before replacement). Bottom line: A dependable, no-frills carbon monoxide alarm that’s easy to install and use, ideal for anyone who wants straightforward protection without extra bells and whistles.

### ⭐⭐⭐⭐⭐ Great Product
*by C***K on October 2, 2025*

Easy to install, works Great!!

### ⭐⭐⭐⭐⭐ Easy to install
*by L***O on January 8, 2026*

Easy to install . I assume it works as it is supposed to.

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*Product available on Desertcart Iceland*
*Store origin: IS*
*Last updated: 2026-02-03*