It’s not that easy to choose the right carbon monoxide smoke detector combination since there’s a ton of things you need to consider first. Some of the factors we paid attention to in our evaluation when reviewing the top carbon monoxide smoke detector combination on the market. Through our research, weve looked through catalogues to pick out the very best for you. Through our comparison table, in-detail reviews of each product, were going to reveal the name of our best carbon monoxide smoke detector combination on the marketbut dont skip to the end!

Best carbon monoxide smoke detector combination

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Best carbon monoxide smoke detector combination reviews

1. Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning | Hardwired w/Battery Backup | Interconnectable | Model # KN-COSM-IBA

Feature

Smart Interconnect-Interconnects up to 24 Kidde devices (of which 18 can be initiating), Battery Backup (2-AA batteries included)-Provides protection during power outages.Front Loading Battery Door-Replace the backup batteries without disconnecting from mounting bracket
Humidity range:10%-95% relative humidity, non-condensing.Battery Lockout System-The battery door will not close unless the batteries are properly installed, Alarm Tamper Resist-Helps deter from tampering and theft, Adjustable Mounting Bracket-Makes installation fast and easy. Works with existing smoke and combination smoke and CO mounting brackets.
Peak Level Memory-Announces "CARBON MONOXIDE PREVIOUSLY DETECTED" if alarm has detected a CO level of 100ppm or higher since it was last reset, HushTM Feature-Silences nuisance alarms for approximately 9 minutes. (Smoke must be present before HushTM is activated)
Ionization Sensor Technology-Ideal for detecting fast flaming and other types of fires, est Button Functions:- Tests the unit for proper operation - Peak Level memory - Resets the Carbon Monoxide alarm
Green LED-Illuminates to indicate the unit is receiving AC power. Flashes once every 60 seconds to indicate battery only mode. Flashes once per second during alarm to indicate initiating alarm. Flashes once every 16 seconds to indicate smoke or CO previously detected. Flashes every 2 seconds while the alarm is in HUSHTM mode
Red LED-When a dangerous level of smoke or carbon monoxide is detected the red LED will flash. If the unit malfunctions, the red LED will flash and the unit will chirp every 30 seconds
Talking alarm announces the hazard type detected, helping to speed up reaction time
Combined carbon monoxide and smoke alarm, a single unit can be installed where previously two were needed
Battery safeguard ensures the unit cannot be accidentally mounted without batteries
Test-reset button tests alarm circuitry and triggers the voice announcement
Meets safety standards set by Underwriters Laboratories (UL) and interconnects with other KN-COSM-IBA models
120V AC, All Kidde brand hard wired smoke alarms are interconnectable with the KN-COSM-IBA

Description

This combination smoke/CO alarm features an 85dB horn and voice that announces "Fire", "Carbon Monoxide", and "Low Battery" warnings when detected. It can also interface with other Kidde interconnectable alarms. Meets NFPA 72 standards Smoke and Carbon Monoxide Alarm, Detection Method Ionization, Electrochemical, Up to 24 Units Interconnection Capability, Power Source 120VAC, 9V, Audible Alert 85dB @ 10 ft., Horn, Visual Alert Red LED, Diameter 5-3/4 In., Height 1-3/4 In., Digital Readout No, Battery Backup Yes, Features Voice Warning, Peak Level Memory, Reset Button, Hush Button Yes, Locking Pin Yes, Operating Temp. 40 Degrees to 100 Degrees F, Standards UL, Includes Mounting Anchors and Screws

2. Combination Smoke and Carbon Monoxide Detector Alarm Digital Display for Travel Home Bedroom and Kitchen 9V Battery Operated

Feature

2 in 1 smoke detector/carbon monoxide alarm, well used in the place of carbon monoxide gas leakage and fire place, well guarantee personal safety.
Understand the surrounding environment in real time - smoke detector and carbon monoxide detector Indicator lights on the face of the unit display the presence of smoke or carbon monoxide.
When carbon monoxide and smoke rise to alarm levels, the 85 dB alarm provides a clear, loud warning when it is discovered.
Dual high stability sensors- Minimize carbon monoxide and smoke detector alarm false positive.
Battery operated device Can be easily installed and maintained without the need for an electrician.

Description

Power supply: DC 9V battery, 6F22
Standby current: 98uA
Alarm current: 75mA
Alarm sound: 85dB (1m)
Sensor type: Photoelectric sensor & Electrochemical CO sensor
Low battery warning: <7.6V
Alarm sensitivity. CO alarm sensitivity & time: 70ppm, alarms within 60-180minutes; 150ppm, alarms within 10- 50minutes; 400ppm, alarms within 4-15minutes; 700ppm, alarms within 2-6minutes.
Temperature range: 0C~49C (32F~120F)
Humidity: 95%RH (No icing or condensation)

3. First Alert BRK SC9120B Hardwired Smoke Detector and Carbon Monoxide (CO) Detector with Battery Backup

Feature

Keep your family safe with this hardwired smoke and carbon monoxide alarm; the battery backup means constant monitoring, even if there's a power failure
Features an electrochemical Carbon Monoxide sensing technology as well as an ionization sensor that detects the fine particles of a fast-burning fire
Indicator lights on the face of the unit display the presence of smoke or carbon monoxide, while an 85-decibel siren provides a clear, loud warning upon detection
Can connect to other compatible BRK or First Alert detectors, to ensure all alarms will sound when threat is detected
Simple to use, with a single test/silence button, and side-load battery compartment; tamper-resistant locking brackets and universal mounting brackets make installation easy
Rigorously tested to meet UL standards

Description

This First Alert SC9120B Hardwired Smoke and Carbon Monoxide Detector includes a 9-volt battery backup that continues to protect you in the event of a power failure. The alarm features electrochemical CO sensing technology, an ionization sensor for smoke detection, and an 85-decibel alarm. One button silences any nuisance alarms, and also tests detector functions, while lights indicate if the alarm detects smoke or carbon monoxide. The latching alarm indicator automatically identifies which unit initiated the alarm, even after the conditions that set off the alarm have subsided. And an end-of-life signal enhances your safety by letting you know when it's time to replace the unit. Easliy connect it to compatible BRK or First Alert alarms within a single-family residence; connecting will sound all the alarms together.

4. Kidde Smoke and Carbon Monoxide Detector Alarm with Voice Warning | Hardwired w/10 Year Lithium Battery Backup | Interconnectable | Model # i12010SCO

Feature

Provides Protection from Two Hazards - Fire and CO in one unit with 10-year sealed lithium battery backup.
Sealed-In Lithium Battery Backup - No battery replacement required over the 10 year life of the alarm. Eliminates worry about removal or unauthorized deactivation of alarm.
Voice Warning System - Verbally announces "FIRE!" or "WARNING! CARBON MONOXIDE" to help distinguish between threats.
Ionization Sensing Technology - Ideal for detecting fast flaming and other types of fires. Temperature Range : 40 degree F (4.4 degree C) to 100 degree F (37.8 degree C)
Hush Feature - Temporarily silences nuisance alarms for approximately 9 minutes and will not allow hush mode unless the unit is in alarm mode.

Description

The Kidde i12010SCO is a hardwired combination smoke and carbon monoxide alarm that contains a 10-year, sealed battery backup. This alarm uses breakthrough technology to offer a fast response to real fires, including smoldering and fast-flaming, as well as protect you from carbon monoxide and dramatically reduce the chance of nuisance alarms. The Intelligent sensor technology combines the detection capabilities of an ionization smoke sensor which is more likely to detect smaller, less visible fire particles, like those produced by flaming fires with that of an electrochemical sensor, which is used to detect CO. Since carbon monoxide is present in all fires, having both detection chambers work together in one alarm is a breakthrough in the fire safety industry. When either sensor notices a potential hazard, it will communicate with the other. Depending on what is detected, the alarm will adjust its smoke sensitivity in order to better discriminate between a real hazard and a false one. This constant communication enhances the alarms overall performance in all fires, and significantly reduces the potential for a nuisance alarm.

5. First Alert Smoke Detector and Carbon Monoxide Detector Alarm | Battery Operated, SCO5CN

Feature

Combination smoke detector/carbon monoxide alarm detects two threats
Battery-operated unit installs quickly and easily without an electrician
Photoelectric sensor detects smoke while minimizing false alarms. 2 AA batteries included. EZ access battery drawer, no need to remove alarm from ceiling to change battery
Electrochemical CO sensor alerts you to carbon monoxide danger
A single button tests the unit or silences the alarm. Low battery signal mute, quiets low battery signal for up to 8 hours

Description

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.

6. Kidde Smoke & Carbon Monoxide Detector, Battery Powered, Combination Smoke & CO Alarm, Voice Alert

Feature

Battery Safeguard with Front Load Battery Door - Quick and easy battery replacement.AA batteries required (best with Polaroid AA batteries)
Smart 2-in-1 Voice Alarm - Voice announces "Fire!" or "Warning! Carbon Monoxide"
Smart Hush - Nuisance alarms are silenced by pressing the hush button.
Test/Reset Button, LEDs, and Low Battery Warning. Temperature Range: 40F (4.4C) to 100F (37.8C)
Meets Underwriters Laboratories (UL) UL2034 and UL217 compliance. Note: Refer the User Guide before use.

Description

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.

7. Combination Smoke Alarm and Carbon Monoxide Detector Alarm Battery Operated Digital Display for Home Bedroom Kitchen

Feature

Combination Smoke Detector and Carbon Monoxide Detector Can Detect the threat of these Two Gases.
Photoelectric Sensor Detects Smoke, Smoke Detector While Minimizing false alarms.
Carbon Monoxide Detector alarm Using High accurate Electrochemical Sensor, alerts you to Carbon Monoxide Danger.
Smoke CO Detector Operated unit installs quickly and easily without an electrician at home or bedroom.
LCD display concentration PPM, real-time monitoring to protect your safety

Description


This combination smoke/CO carbon alarm features an 85dB horn when detected. Meets NFPA 72 standards Smoke and Carbon Monoxide Alarm, Electrochemical, Audible Alert 85dB @ 10 ft., Horn,Reset Button, Hush Button Yes, Locking Pin Yes, Operating Temp. 40 Degrees to 100 Degrees F, Standards UL, Includes Mounting Anchors and Screws

Features:
* Battery low voltage tips
*Automatic reset
* Sound and light alarm
* SMT industry, strong stability
* MCU automatic processing technology to improve product stability

Technical Parameters

Working power: 3*AA batteryincluded
Quiescent current: <8uA
Alarm current: <35mA
Sensitivity: 2.06% / ft 1.3
Alarm sound pressure: 85dB / 3m Department
Operating temperature: -10 ~ +50
Relative humidity: 95% RH
Dimensions: 105 * 38mm
Executive Standard: GB4715-2005; En14604; UL217
Coverage Area: When the space height is 6m-12m, the protective area of one detector is 80m2 for the general protection site and 60m2 for the space height of 6m or less.

8. X-Sense 10 Year Battery Smoke and Carbon Monoxide Detector with Display, Dual Sensor Smoke CO Alarm Complies with UL 217 & UL 2034 Standards, Auto-Check, SC01

Feature

10-Year Battery & 10-Year Sensor: This smoke and carbon monoxide alarm provides 10 years of continuous power with a built-in lithium battery, saving on energy while remaining eco-friendly; saves you from constantly having to change batteries; an end-of-life signal will let you know when it's time to replace the unit for safety
Practical LCD Display: Clearly indicates real-time carbon monoxide (CO) concentration in the surrounding air, as well as the remaining battery life and working status of the alarm; if a CO concentration of 30-999 ppm exists for a certain time period, the screen will be backlit blue, and the LED indicator will flash red 4 times every 5.8 seconds
2-in-1 Accurate, Reliable & Highly Sensitive Alarm: Equipped with both photoelectric smoke sensor and electrochemical CO sensor that work independently of each other; every second counts; detects both fast and slow-burning fires, and instantly notifies you when dangerous smoke or CO concentration is detected while minimizing false alarms; provides the ultimate protection from 2 deadly threats, all contained in 1 unit
Simple to Use: Test/Silence button enables you to test the alarm weekly, and to easily silence the alarm when false alarms occur; malfunction and low battery warnings allow you to easily know the working status of the alarm; in case of an emergency, an alarm tone of over 85 dB will sound throughout your entire home, instantly alerting the entire household, even those in sleep
Quick & Easy Installation with Guaranteed Quality: Requires no rewiring; easy to mount on any wall or ceiling with the included mounting bracket, screws and anchor plugs; certified to meet the UL 217 & UL 2034 safety standards for your peace of mind and absolute confidence in our product

Description

User-Friendly Design
The LED indicator is lit by a stable, anti-glare light. This makes the unit totally suitable for use in the bedroom, as it will not interfere with your sleep. Malfunction and low battery warnings allow you to easily know the working status of the alarm.

Different Working Modes
1.When the unit is working normally, the LED indicator flashes green once every 60 seconds.
2.When the battery in the unit is low, the LED indicator flashes yellow and the alarm chirps once every 60 seconds.
3.When the unit detects dangerous smoke or CO levels, the LED indicator flashes red and the alarm sounds an alarm tone.
Technical Specifications
Power supply: 10-year sealed lithium battery
Sensor type: Smoke: photoelectric; CO: electrochemical
Safety standards: UL 217, UL 2034, ULC S531, CSA 6.19-01, EN 14604:2005, EN 50291:2010
Smoke sensitivity: 0.97-1.79%/ft OBS (UL 217); 0.97-2.29%/ft OBS (ULC S531)
Standby current: < 6 A (avg.)
Alarm current: < 60 mA (avg.)
Best operating ambient temperature: 40-100 F (4.4-37.8 C)
Operating relative humidity: 85% (non-condensing)
Alarm volume: 85 dB at 9.84 ft (3 m)
Silence duration: Smoke: 9 minutes; CO: 6 minutes (ETL); 9 minutes (BSI)

Package Contents
1 Alarm Unit
1 Mounting Bracket
3 Screws
3 Anchor Plugs
1 User Manual
1 Warranty Card

9. Kidde P3010CU Photoelectric Smoke & Carbon Monoxide Alarm with Voice Warning System

Feature

Voice Alarm Announces the hazard type detected thereby
Sealed in lithium battery
Photoelectric sensor
End of life warning
This is an aftermarket of generic part

Description

The Kidde P3010CU is a 10 Year sealed battery smoke and carbon monoxide alarm with a voice warning system that features photoelectric and electrochemical sensing technology with Smart Hush feature. This combination alarm combines the detection capabilities of a photoelectric sensor with that of an electrochemical sensor which is used to detect CO. When either sensor notices a potential hazard, it will communicate with the other. Depending on what is detected, the alarm will adjust its smoke sensitivity in order to better discriminate between a real hazard and a false one. This constant communication enhances the alarms overall performance and significantly reduces the potential for a nuisance alarm.

10. Combination Smoke and Carbon Monoxide Detector with Display, Battery Operated Smoke CO Alarm Detector (White-001)

Feature

Combination Smoke Detector and Carbon Monoxide Detector Can Detect the threat of these Two Gases.
Carbon Monoxide Detector alarm Using High accurate Electrochemical Sensor, alerts you to Carbon Monoxide Danger.
Photoelectric Sensor Detects Smoke, Smoke Detector While Minimizing false alarms.
Smoke CO Detector Operated unit installs quickly and easily without an electrician at home or bedroom.
LCD display concentration PPM, real-time monitoring to protect your safety

Description

PRODUCT FEATURES:
High accurate electrochemical sensor and infrared photoelectric sensor
LCD display concentration PPM
3*1.5V AA battery ( package not include)
Ultra-long standby time, low current consumption
Low-battery warning
Alarm memory function
pause(Hush Mode)
Sound & Flash Alarm & LED indicating Alarm
Temperature: 0-50
Relative Humidity: 10-95%
Alarm indication: LCD display, Light/sound prompt
Battery capacity: low battery alarm
Dimensions:4.09*1.53in

Conclusion

All above are our suggestions for carbon monoxide smoke detector combination. This might not suit you, so we prefer that you read all detail information also customer reviews to choose yours. Please also help to share your experience when using carbon monoxide smoke detector combination with us by comment in this post. Thank you!
Jane Mathis