Carbon Monoxide Detector
12,386 results

Item Price Seller
Honeywell 5800co Carbon Monoxide Detector - Brand New

Honeywell 5800co Carbon Monoxide Detector - Brand New

Category: Carbon Monoxide Detectors
$65.99Ebay
Smart CO Carbon Monoxide Detector Alarm Battery Power + Voice Warning Sensor

Smart CO Carbon Monoxide Detector Alarm Battery Power + Voice Warning Sensor

Category: Carbon Monoxide Detectors
$19.29Ebay
LCD CO Carbon Monoxide Detector Poisoning CO Smoke Gas Warning Sensor Monitor

LCD CO Carbon Monoxide Detector Poisoning CO Smoke Gas Warning Sensor Monitor

Category: Carbon Monoxide Detectors
$15.39Ebay
FUERS LED digital display CO gas detector voice prompt home security personal safety Carbon monoxide detector Alarm

FUERS LED digital display CO gas detector voice prompt home security personal safety Carbon monoxide detector Alarm

$17.60Aliexpress
Sensitivety LCD Digital Screen Independent Carbon Monoxide Detector for Test CO Gas Leak Detector 85dB Indoor Alarm

Sensitivety LCD Digital Screen Independent Carbon Monoxide Detector for Test CO Gas Leak Detector 85dB Indoor Alarm

$7.20Aliexpress
YobangSecurity Battery Operated Carbon Monoxide Detector Poisoning Gas Fire Warning Safe Alarm LCD Display with Clock Voice

YobangSecurity Battery Operated Carbon Monoxide Detector Poisoning Gas Fire Warning Safe Alarm LCD Display with Clock Voice

$17.09Aliexpress
JERUAN ceiling coal gas natural gas LPG detector Carbon Monoxide Detectors connect to alarm system control FIR anti gas leaking

JERUAN ceiling coal gas natural gas LPG detector Carbon Monoxide Detectors connect to alarm system control FIR anti gas leaking

$9.45Aliexpress
KERUI LED Digital Display Carbon Monoxide Detectors Voice Strobe Home Security Safety CO Gas Carbon Alarm Detector Sensor Alarm

KERUI LED Digital Display Carbon Monoxide Detectors Voice Strobe Home Security Safety CO Gas Carbon Alarm Detector Sensor Alarm

$18.60Aliexpress
LCD CO Carbon Monoxide Poisoning Sensor Alarm Warning Detector Tester

LCD CO Carbon Monoxide Poisoning Sensor Alarm Warning Detector Tester

Category: Carbon Monoxide Detectors
$7.85Ebay
First Alert CO600 Plug In Carbon Monoxide Alarm Detector Home Safety*

First Alert CO600 Plug In Carbon Monoxide Alarm Detector Home Safety*

Category: Carbon Monoxide Detectors
$22.5Ebay
BRK First Alert SCO2B CARBON MONOXIDE & SMOKE ALARM COMBO DETECTOR SCO2B

BRK First Alert SCO2B CARBON MONOXIDE & SMOKE ALARM COMBO DETECTOR SCO2B

Category: Carbon Monoxide Detectors
$27.99Ebay
CO Carbon Monoxide Poisoning Gas Sensor Warning Alarm Detector Tester New

CO Carbon Monoxide Poisoning Gas Sensor Warning Alarm Detector Tester New

Category: Carbon Monoxide Detectors
$12.99Ebay
CO Gas Sensor Alarm Accessory LCD Digital Screen Carbon Monoxide Alarm Detector for Home Security Automatic Alarm

CO Gas Sensor Alarm Accessory LCD Digital Screen Carbon Monoxide Alarm Detector for Home Security Automatic Alarm

$6.80Aliexpress
YobangSecurity Home Security 85dB Warning LCD Photoelectric Independent CO Gas Sensor Carbon Monoxide Poisoning Alarm Detector

YobangSecurity Home Security 85dB Warning LCD Photoelectric Independent CO Gas Sensor Carbon Monoxide Poisoning Alarm Detector

$6.64Aliexpress
Home Security 85dB Warning High Sensitive LCD Photoelectric Independent CO Gas Sensor Carbon Monoxide Poisoning Alarm Detector

Home Security 85dB Warning High Sensitive LCD Photoelectric Independent CO Gas Sensor Carbon Monoxide Poisoning Alarm Detector

$6.80Aliexpress
free shipping!LCD CO Sensor Work alone Built-in 85dB siren sound Independent Carbon Monoxide Poisoning Warning Alarm Detector

free shipping!LCD CO Sensor Work alone Built-in 85dB siren sound Independent Carbon Monoxide Poisoning Warning Alarm Detector

$6.01Aliexpress
Goden Security 85dB Warning High Sensitive LCD Photoelectric Independent CO Gas Sensor Carbon Monoxide Poisoning Alarm Detector

Goden Security 85dB Warning High Sensitive LCD Photoelectric Independent CO Gas Sensor Carbon Monoxide Poisoning Alarm Detector

$10.99Aliexpress
Sunnec Carbon Monoxide Alarm with Voice Warning ,CO Alarm Detector with Digital Display

Sunnec Carbon Monoxide Alarm with Voice Warning ,CO Alarm Detector with Digital Display

$23.97 - $25.64Amazon
KIDDE FIREX 21007624 AC CARBON MONOXIDE SMOKE ALARM new

KIDDE FIREX 21007624 AC CARBON MONOXIDE SMOKE ALARM new

Category: Carbon Monoxide Detectors
$31.5Ebay
Carbon Monoxide Alarm First Alert CO605 Plug-In with Battery Backup

Carbon Monoxide Alarm First Alert CO605 Plug-In with Battery Backup

Category: Carbon Monoxide Detectors
$22.99Ebay
First Alert CO400 Battery Powered Carbon Monoxide Alarm, New, Free Shipping

First Alert CO400 Battery Powered Carbon Monoxide Alarm, New, Free Shipping

Category: Carbon Monoxide Detectors
$17.83Ebay
First Alert CO400 Battery Powered Carbon Monoxide Alarm, 2-Pack

First Alert CO400 Battery Powered Carbon Monoxide Alarm, 2-Pack

Category: Tools & Home Improvement
$25.64 - $30.63Amazon
First Alert CO605 Carbon Monoxide Plug-In Alarm with Battery Backup

First Alert CO605 Carbon Monoxide Plug-In Alarm with Battery Backup

Category: Tools & Home Improvement
$16.35 - $20.44Amazon
Kidde Battery-Operated Carbon Monoxide Alarm with Digital Dis

Kidde Battery-Operated Carbon Monoxide Alarm with Digital Dis

Category: Tools & Home Improvement
$21.99 - $25.64Amazon
First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm, Battery Operated

First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm, Battery Operated

Category: Tools & Home Improvement
$25.99 - $33.16Amazon
Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup

Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup

Category: Tools & Home Improvement
$30.00Amazon
Kidde KNCOB-DP2 Tamper Resistant Plug-In Carbon Monoxide Alarm with Battery Backup

Kidde KNCOB-DP2 Tamper Resistant Plug-In Carbon Monoxide Alarm with Battery Backup

Category: Tools & Home Improvement
$14.00 - $25.11Amazon
First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup

First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup

Category: Tools & Home Improvement
$25.99 - $35.00Amazon
First Alert CO615 Dual-Power Carbon Monoxide Plug-In Alarm with Battery Backup and Digital Display

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

Category: Tools & Home Improvement
$21.99 - $25.99Amazon
Kidde Battery-Operated(Not Hardwired) Combination Smoke/Carbon Monoxide Alarm with Voice Warning KN-COSM-BA

Kidde Battery-Operated(Not Hardwired) Combination Smoke/Carbon Monoxide Alarm with Voice Warning KN-COSM-BA

Category: Tools & Home Improvement
$25.64 - $27.21Amazon

Carbon Monoxide Detector Product Descriptions

Kidde KN-COPP-3 Nighthawk Plug-In Carbon Monoxide Alarm with Battery Backup

Digital display displays the level of carbon monoxide the unit is sensing.

Peak Level Button -Displays the peak CO level recorded by the alarm since it was last reset or unplugged.

Power - 120 volts AC, 60 Hz, 60 mA max, 9 volt battery back-up.

In alarm condition you will hear 4 quick beeps, 5 seconds off, repeat..

Meets Underwriters Laboratories (UL) UL2034 compliance. Three convenient mounting options.

Product Dimensions - 6.0625"L x 3.75"W x 1.75"H.

The Kidde 900-0076-01 Plug-In Carbon Monoxide Alarm utilizes sophisticated electronic components and sensor technology to protect your family from the silent killer, carbon monoxide. This discreet alarm fits into any standard outlet so that it can go anywhere in your home. It features a digital display of CO levels that's easy-to-read, a loud siren that the whole house can hear, and it comes with mounting hardware and a 6-foot power cord for a variety of mounting options that best suit your surroundings. 9-volt battery and installation guide included.   Additional Features Type: Plug-in, Battery-backup Alarm Type: Carbon monoxide Use: Residential   About Kidde In the business for over 90 years, Kidde is the world's largest manufacturer of fire safety products. Industry leaders, the military, airlines, firefighters, and countless families rely on Kidde for fire detection and suppression every day, so they take their products very seriously. They're based in Mebane, NC, and are a division of the larger UTC Fire & Security. To protect your family and home from the dangers of fire, count on a Kidde. Plug-in alarm with battery backup. Digital display shows CO level and CO peak. Loud siren. 6-foot power cord and table-top mounting options. 5-year limited warranty.


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

Dual-power carbon monoxide alarm offers continuous monitoring of CO levels.

Plugs into any outlet and features battery backup.

Backlit digital display shows at-a-glance readings for power and CO.

Single test/silence button for simple operation.

End-of-life timer signals when the CO detector needs replacing.

Dual Power (plug in/electric and front load battery) ensures continuous protection to make certain the alarm will work at all times, even during power outages.

Peak Level feature displays the highest concentration of carbon monoxide measured since the unit was last reset.

Easily plugs into any standard outlet with no additional mounting necessary or it can also be mounted on any wall using the convenient power line cord (approx. 6 feet long).

Backed by a 7-year limited warranty and meets Underwriters Laboratories (UL) UL2034 standard for safety.

The First Alert CO615 Dual-Power Carbon Monoxide Plug-In Alarm alerts you to dangerous carbon monoxide. This carbon monoxide detector features a backlit digital display that shows at a glance the carbon monoxide level in the room, as well as the unit’s power level. The dual-power design with battery backup means this personal carbon monoxide detector can monitor even in the event of a power outage. It plugs into any 120-volt outlet and features an end-of-life timer that lets you know when the monitor needs to be replaced. A single silence and test button eliminates confusion and allows you to silence and test the alarm easily.


First Alert BRK SC-9120B Hardwired Smoke and Carbon Monoxide Alarm with Battery Backup

Hardwired CO smoke alarm features battery backup for constant monitoring.

Can connect to other compatible BRK or First Alert CO smoke detectors.

Lights indicate if the alarm is for smoke or for carbon monoxide.

Single test/silence button for simple operation.

Side-load battery compartment for convenience.

The First Alert BRK SC-9120B Hardwired Combination Smoke and Carbon Monoxide Alarm uses electrochemical CO sensing technology and Ionization sensor for smoke detection. This hardwired dual CO smoke alarm can be connected to other compatible BRK or First Alert hardwired CO smoke detectors within a single-family residence. The latching alarm indicator automatically identifies which unit initiated the alarm--even after the conditions that set off the alarm have subsided. Using a 9-volt backup battery, the smoke and carbon monoxide detector can function even in the event of a power outage. Additionally, the CO smoke alarm features a single test and silence button, as well as indicator lights that let you know whether the danger is smoke or carbon monoxide. The tamper-resistant locking brackets and universal mounting brackets make installation easy.


First Alert CO400 Battery Powered Carbon Monoxide Alarm, 2-Pack

2-Pack battery-operated carbon monoxide alarm with modern, compact design with no installation required.

Uses electrochemical carbon monoxide sensor-the most accurate technology available.

Simple to use silence/test button; low battery warning; end-of-life timer and loud 85-Decibel alarm.

Battery access in back of unit, 9 Volt battery included.

5-Year limited warranty. Date on item is manufacturing date..

Expand detection throughout your home for dangerous carbon monoxide leaks with the First Alert CO400 Battery-Operated Carbon Monoxide Alarm 2-Pack. These carbon monoxide detectors each use an electrochemical carbon monoxide sensor, the most accurate CO detection technology available, to detect the CO you can't see, smell, or taste in the air. Each unit is powered by one 9-volt replaceable battery, offering peace of mind even during power outages, and each includes a permanent internal sensor lasts up to five years. An 85-decibel horn sounds if carbon monoxide levels are too high, and a pull-down action chart on each detector offers guidance on what to do if an alarm sounds. Each unit features a test/silence button that silences the alarm and allows you to test its functionality. No installation or outlet is required, and an optional wall mount is included.


Kidde Battery-Operated(Not Hardwired) Combination Smoke/Carbon Monoxide Alarm with Voice Warning KN-COSM-BA

Smart 2-in-1 Voice Alarm - Voice announces "Fire!" or "Warning! Carbon Monoxide".

Smart Hush - Nuisance alarms are silenced by pressing the hush button..

Battery Safeguard with Front Load Battery Door - Quick and easy battery replacement..

Test/Reset Button, LEDs, and Low Battery Warning. Temperature Range: 40˚F (4.4˚C) to 100˚F (37.8˚C).

Meets Underwriters Laboratories (UL) UL2034 and UL217 compliance..

Note: Refer the User Guide before use..

The Kidde KN-COSM-BA battery-operated carbon monoxide and smoke alarm combines two important safety devices into a single unit.

This alarm includes a voice warning system that makes four announcements: fire, carbon monoxide, low battery, or smart hush activation. The voice alarm eliminates any confusion and clearly warns you and your family of a smoke or carbon monoxide danger, or if your battery is in need of replacement. This unit uses three AA batteries, protecting you and your family even during a power outage. This alarm uses ionization-sensing technology for the smoke alarm. Ionization-sensing alarms may detect invisible fire particles (associated with flaming fires) sooner than photoelectric alarms. Photoelectric-sensing alarms may detect visible particles (associated with smoldering fires) sooner than ionization alarms. Kidde strongly recommends that both ionization and photoelectric smoke alarms be installed to help ensure maximum detection of the various types of fire that can occur within the home.

KN-COSM-BA Battery-Operated Combination Smoke and CO Alarm at a Glance Employs both smoke and carbon monoxide sensors Stand-alone battery-operated alarm is easy to install throughout the home, as no wiring is needed Features a hush button to silence the alarm for non-emergency situations like a smoky dinner Voice alarm eliminates confusion and clearly warns of smoke/CO danger or low battery Protects from two different hazards, smoke and carbon monoxide, and has a different voice warning for each hazard.

The battery-operated KN-COSM-BA offers easy installation.

Combination Smoke/Carbon Monoxide Alarm The Kidde combination carbon monoxide and smoke alarm includes a voice warning system that eliminates confusion and clearly warns you and your family of a smoke or carbon monoxide (CO) danger, of low battery, or of hush-mode setting.

Alarm Warnings Fire:

The red LED will flash and be accompanied by three long alarm beeps followed by a verbal warning message: "Fire! Fire!" The alarm will repeat the pattern until smoke is eliminated.

Carbon Monoxide:

Four short alarm beeps followed by a verbal warning: "Warning--carbon monoxide!" This continues until the unit is reset or the CO is eliminated.

Low Battery:

One chirp followed by warning: "Low battery." The red LED light will flash. This pattern will continue every minute for the first hour. After the first hour, the red LED light will flash once every minute and will be accompanied by the chirp sound. The low-battery warning will only sound once every 15 minutes.

Voice Hush Indication:

"Hush activated" and "Hush canceled" voice announcement. Peak Level Memory: If the alarm had detected a CO level of 100ppm or higher when the test/reset button is pressed, the unit will announce, "Carbon monoxide previously detected" to warn of the CO incident. Trademarked Hush Feature for Convenience By pressing the hush button, you can easily and safely silence nuisance alarms caused by non-emergency situations, such as overcooked dinners. This feature desensitizes the alarm for approximately 10 minutes. If the smoke is not too dense, the alarm will silence immediately, the unit will verbally announce, "Hush mode activated," and the green LED will flash every two seconds for approximately 10 minutes.

Reliable Battery Power, Indicator LED, Test Feature and Low-Battery Warning The battery-powered alarm provides continuous protection, even during power outages. Because this alarm only helps protect you if it's working, this unit features a red LED that flashes every 30 to 40 seconds to indicate that it is operating correctly.

For additional peace of mind, the alarm also contains a test/reset button that enables you to periodically test its circuitry and horn. If any form of battery failure is detected, the red LED light will flash and the unit will chirp one time, followed by the warning message, "low battery." This cycle will occur once every minute, and will continue for at least seven days. Seven years after initial power up, this unit will chirp" every 30 seconds.

This is an operational end-of-life feature that will indicate that it is time to replace the alarm. UL 2034, the independent standard applicable to CO alarms, requires CO alarms to have an end-of-life warning. This requirement went into effect in March 2007, meaning any CO alarm manufactured after April 2007 with a UL listing must have this feature. Most states that require CO alarms in residential dwellings mandate that the alarm meet the UL 2034 standard.

The unit measures just 5.75 inches in diameter and 1.7 inches deep, and it features a neutral white finish. It includes tamper-resistant features to deter vandalism or theft. This combination smoke/CO alarm is UL listed, so you can be confident of its quality, and it is backed by a ten-year limited warranty.

About Kidde:

A UTC Fire and Security Brand Renowned for global leadership in fire detection and suppression, Kidde provides solutions ranging from portable fire extinguishers to advanced industrial controls such as flame detection and explosion suppression systems. Kidde is a UTC Fire and Security brand, with a history that's rich with innovations, from the patent of the Chubb detector lock in 1818 to the development of the world's first wireless networked smoke detectors in 2004.

What's in the Box:

Combination smoke and carbon monoxide alarm with mounting bracket and mounting hardware, three AA batteries, a and bilingual (English/Spanish) user's manual.


Kidde KNCOB-DP2 Tamper Resistant Plug-In Carbon Monoxide Alarm with Battery Backup

AC Powered Plug in with Battery Back up.

Alerts User to replace after 10 Years of operation.

Test Reset Button.

Led Operation.

Tamper resistant feature.

Carbon Monoxide Alarm AC Powered with Battery Back up; Tamper resistant feature; Led operation; Test Reset Button; Alerts user to replace after 10 years of operation; Low battery hush; Event memory; UL listed.


First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm, Battery Operated

Battery-operated combination smoke and carbon monoxide alarm.

Photoelectric smoke sensing technology & electrochemical CO sensing technology.

Simple to use silence/test button; low battery warning; Does not contain voice feature.

Includes 2 AA batteries; 7 year limited warranty.

Tested to the highest industry standards, meets UL safety standards.

The First Alert SCO5CN Combination Smoke and Carbon Monoxide Alarm detects both smoke and carbon monoxide in a single device with its dual permanent sensors. This carbon monoxide and smoke detector is battery operated, allowing you to easily install it without requiring an electrician. A photoelectric sensor detects the smoke most commonly produced by smoldering fires and minimizes false alarms from cooking smoke or shower steam. The advanced electrochemical CO sensor detects carbon monoxide leaks from multiple sources, such as faulty fuel-burning appliances, blocked chimneys, and generators running inside or too close to homes. Requiring just two AA batteries and featuring an easy-access battery compartment for quick changes, this smoke and carbon monoxide detector has unique alarm sounds and indicator lights on its face that distinguish a smoke warning from a carbon monoxide warning. A single button allows you to silence a false alarm or test the unit.


First Alert CO605 Carbon Monoxide Plug-In Alarm with Battery Backup

CO detector alerts you to carbon monoxide.

Battery backup allows for continuous monitoring during power outages.

Loud 85-decibel alarm sounds when CO levels are elevated.

CO detector plugs into any standard electrical socket.

Single test/silence button for simple operation.

The First Alert CO605 Carbon Monoxide Plug-In Alarm features an electrochemical CO sensor to alert you to dangerous carbon monoxide. This personal carbon monoxide detector plugs into any standard electrical socket and monitors your space for elevated carbon monoxide levels. A clear, 85-decibel alarm sounds when levels become hazardous. This CO detector also features a battery backup that allows for continuous monitoring, even in the event of a power failure. The simple, user friendly design makes this CO detector easy to set up and operate, and it features an end-of-life warning that lets you know when it is time to replace the unit.


Sunnec Carbon Monoxide Alarm with Voice Warning ,CO Alarm Detector with Digital Display

► SOUND AND LIGHT ALARM --- When a dangerous level of carbon monoxide is detected the red light will flashes and a loud alarm pattern will sound--Loud 85 decibel alarm with red light Flash to protect your family's life and property safety.

► CO CONCENTRATION DISPLAY --- Digital display displays the level of carbon monoxide the unit is sensing,You can keep abreast of the concentration of carbon monoxide.

► ENERGY SAVING --- Operated by 3 x 1.5V AAA Batteries ,You can hear the alarm when the power is low,don't worry about when to replace the battery.

► APPLICATION --- Suitable for all where it is possible to produce carbon monoxide, such as your home kitchen, bedroom, bathroom, hotel, or you are in the barbecue time, your parking garage.

► WHAT YOU GET --- Carbon Monoxide Detector,24-Month Warranty.

► Why use carbon monoxide monitor?
► What is the risk of carbon monoxide?

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 Backey carbon monoxide detector can be placed almost anywhere. In the event of a power failure,batteries power the CO detector, so it can continue monitoring your space for dangerous levels of carbon monoxide.

► Features:
Power : 3 * 1.5AAA
Sensors : Electrochemical Carbon Monoxide Detector
Operating temperature : 0-50 °
Operating Humidity : Relative Humidity 20-95% R.H.
Detection concentration : 000-999PPM
Sensitive level : 5PPM
Error : +/- 10%
Normal working concentration reading : 000PPM
Alarm concentration reading : 030-999PPM
Size : 4.9*2.8*1.3in(125MM * 72MM * 35MM)
Power display : low battery alarm

► Note :
The product has been completed in the factory in the professional test of the gas tank, only through the detection of products will enter the market! When you receive the product, the product runs the self-test program no problem, you can use! If you can not complete the self-test procedures, the product may be damaged during transport, please contact us to replace or refund.


Kidde Battery-Operated Carbon Monoxide Alarm with Digital Dis

Battery Operated (AA) - Provides best protection during power outages. Trial batteries included, best used with Polaroid AA Batteries.

Large digital display is easy to read, even in low-light conditions.

Peak-level memory displays the highest CO concentration measured since the last reset.

Battery Safeguard, Low Battery Signal, Slide-Out Battery Door Cover.

Meets Underwriters Laboratories (UL) UL2034 compliance.

Kidde KN-COPP-B-LPM Battery-Operated Carbon Monoxide Alarm w/ Digital Display - Digital screen with large backlit display is easy to read, even in low-light conditions - Peak-level memory displays the highest CO concentration measured since the last reset - Meets the all UL requirements - Battery operated with three AA batteries included - Backed by a five-year warranty Need more information on this product? Click here to ask.