We Use CookiesWe use cookies to enhance the security, performance,
functionality and for analytical and promotional activities. By continuing to browse this site you
are agreeing to our privacy policy
10 Best Co Smoke Detector Combo 2025 in the United States
#1
Winner
First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 6-Pack
The First Alert SMICO100-AC is a 6-pack of combination smoke and carbon monoxide alarms designed for home safety. It uses ionization sensors, which are effective at quickly detecting fast-flaming fires but can be more prone to occasional false alarms from cooking smoke. This model benefits from First Alert's Precision Detection technology, which helps reduce those nuisance alarms, making it more reliable in kitchens or near cooking areas. The alarms are hardwired with a battery backup, ensuring they stay powered even during outages, which is essential for continuous protection.
Rating
10.0
Chosen by1,290
Power Source
Interconnectivity
Display and Indicators
Most important from
27178 reviews
#2
X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, Over 820 ft Transmission Range, 6-Pack
The X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector offers several strong features for home safety. It combines both photoelectric and electrochemical sensors, ensuring reliable detection of both smoke and carbon monoxide. The built-in 10-year lithium battery is a significant advantage, providing peace of mind without the need for frequent battery changes. Additionally, the wireless interconnectivity means if one detector is triggered, all units in the network will sound the alarm, offering comprehensive coverage across your home.
Rating
10.0
Power Source
Interconnectivity
Alarm Type
Most important from
5178 reviews
#3
X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, 5-Pack
The X-Sense Smoke Detector Carbon Monoxide Detector Combo offers a reliable and convenient solution for home safety with its 2-in-1 protection against smoke and carbon monoxide. A notable strength is its 10-year sealed lithium battery, which means there's no need for frequent battery changes, providing peace of mind for a decade. Additionally, the combination of electrochemical and photoelectric sensors enhances the alarm's sensitivity and response time, which can be crucial in emergencies. The alarm is loud at 85 dB, ensuring that it will be heard throughout the home in case of an alert. Its standalone design makes installation straightforward without the need for rewiring, and the included mounting bracket and screws simplify the process further. Moreover, the device is made from premium, heat-resistant, and corrosion-resistant materials, ensuring durability.
Rating
9.9
Power Source
Alarm Type
Display and Indicators
Most important from
2127 reviews
Top 10 Best Co Smoke Detector Combo 2025 in the United States
#1
Winner
First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 6-Pack
First Alert SMICO100-AC Interconnect Hardwire Combination Smoke & Carbon Monoxide Alarm with Battery Backup, 6-Pack
Sensor Type: Ionization
Power Source: Corded Electric
Interconnectivity: Interconnects with most First Alert alarms
Alarm Type: Smoke, CO
Display and Indicators: Latching alarm indicator
Chosen by 1290 this week
X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, Over 820 ft Transmission Range, 6-Pack
X-Sense Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, Over 820 ft Transmission Range, 6-Pack
Sensor Type: electrochemical, photoelectric
Power Source: Battery Powered
Interconnectivity: Wireless
Alarm Type: Audible
Display and Indicators: LCD
Lifespan and Warranty: 10-year battery, 5-year warranty
X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, 5-Pack
X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, 5-Pack
Sensor Type: electrochemical, photoelectric
Power Source: 10-year sealed lithium battery
Alarm Type: Audible, 85 dB
Lifespan and Warranty: 10-year
X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display, Standalone Model, 5-Pack
X-Sense 10-Year Battery Combination Smoke Carbon Monoxide Alarm Detector with Large LCD Display, Standalone Model, 5-Pack
Sensor Type: electrochemical, photoelectric
Power Source: Battery Powered
Interconnectivity: None
Alarm Type: Audible
Display and Indicators: LCD display
Lifespan and Warranty: 10 years battery, 5-year warranty
Related Products
Up to 15% off
X-Sense Smoke and Carbon Monoxide Detector Combo, Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, RF Interconnected Model, 6-Pack
X-Sense Smoke and Carbon Monoxide Detector Combo, Wireless Interconnected Combination Smoke and Carbon Monoxide Detector with LCD Display & 10-Year Battery, RF Interconnected Model, 6-Pack
Sensor Type: Photoelectric
Power Source: Battery Powered
Interconnectivity: Wireless
Alarm Type: Audible
Display and Indicators: LCD showing CO levels
Lifespan and Warranty: 10-year battery
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators, 2 Pack
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators, 2 Pack
Sensor Type: Photoelectric, Electrochemical
Power Source: Hardwired 120V AC, 10-year battery
Interconnectivity: Interconnectable
Alarm Type: Smoke and Carbon Monoxide Alarm
Display and Indicators: Voice alerts, LED green, amber, red
Smart Features: None
Lifespan and Warranty: 10-year lifespan and warranty
X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo, Battery-Operated (Not AC Hardwired) Interconnected Combination Smoke Carbon Monoxide Detector, 5 Detectors with 1 Base Station, SC07-MR51
X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo, Battery-Operated (Not AC Hardwired) Interconnected Combination Smoke Carbon Monoxide Detector, 5 Detectors with 1 Base Station, SC07-MR51
Sensor Type: Photoelectric
Power Source: Battery Powered
Interconnectivity: Interconnected with base station
Alarm Type: Smoke and Carbon Monoxide
Smart Features: App for alerts, test/silence, subscription
AEGISLINK Interlinked Smoke Carbon Monoxide Detector Combo, Smoke and CO Detector Battery Powered, Wireless Interconnected Smoke and CO Alarm, Digital Display, SC-RF200, 10-Pack
AEGISLINK Interlinked Smoke Carbon Monoxide Detector Combo, Smoke and CO Detector Battery Powered, Wireless Interconnected Smoke and CO Alarm, Digital Display, SC-RF200, 10-Pack
Sensor Type: Photoelectric, Electrochemical
Power Source: Battery Powered
Interconnectivity: RF Interlinked
Alarm Type: Audible
Display and Indicators: LCD display
Lifespan and Warranty: 10 years
#10
X-Sense Combination Smoke and Carbon Monoxide Detector with Voice Location, Interconnected Smoke Detector Carbon Monoxide Detector Combo with Base Station (Included), Model XP0A-MR31
X-Sense Combination Smoke and Carbon Monoxide Detector with Voice Location, Interconnected Smoke Detector Carbon Monoxide Detector Combo with Base Station (Included), Model XP0A-MR31
Sensor Type: Electrochemical, Photoelectric
Power Source: Battery Powered
Interconnectivity: All connected units go off together
Alarm Type: Smoke and CO Detector, Base Station
Display and Indicators: Talking alarm with location warnings
Smart Features: Smart app alerts, Protect+ subscription
Lifespan and Warranty: 10-year lifespan, 5-year battery
How do we rank products for you?
Our technology thoroughly searches through the online shopping world, reviewing hundreds of sites. We then process and analyze this information, updating in real-time to bring you the latest top-rated products. This way, you always get the best and most current options available.
Buying Guide for the Best Co Smoke Detector Combo
Choosing the right combination of a carbon monoxide (CO) and smoke detector is crucial for ensuring the safety of your home and loved ones. These devices are designed to detect dangerous levels of carbon monoxide and smoke, alerting you to potential hazards. When selecting a CO-smoke detector combo, it's important to consider several key specifications to ensure you get the best fit for your needs. Understanding these specifications will help you make an informed decision and provide peace of mind knowing that your home is protected.Sensor TypeThe sensor type in a CO-smoke detector combo determines how the device detects carbon monoxide and smoke. Common sensor types include electrochemical sensors for CO detection and photoelectric or ionization sensors for smoke detection. Electrochemical sensors are highly accurate and reliable for detecting CO, while photoelectric sensors are better at detecting smoldering fires and ionization sensors are more responsive to flaming fires. Choosing a combo with both photoelectric and electrochemical sensors ensures comprehensive protection against both CO and different types of fires.
Power SourceCO-smoke detector combos can be powered by batteries, hardwired into your home's electrical system, or a combination of both. Battery-powered detectors are easy to install and can be placed anywhere, but require regular battery replacement. Hardwired detectors are more reliable as they are connected to your home's power supply, but they may require professional installation. Some models offer a battery backup to ensure functionality during power outages. Consider your preference for ease of installation and maintenance when choosing the power source.
InterconnectivityInterconnectivity refers to the ability of multiple detectors to communicate with each other. When one detector senses danger, interconnected detectors will all sound an alarm, providing a more comprehensive alert system. This feature is particularly useful in larger homes or multi-story buildings. Interconnected detectors can be wired or wireless. If you have a large home or want to ensure that alarms are heard throughout the house, look for models with interconnectivity.
Alarm TypeThe alarm type indicates how the detector alerts you to danger. Most CO-smoke detector combos use loud, audible alarms, but some also include voice alerts that specify the type of danger (e.g., 'Fire' or 'Carbon Monoxide'). Voice alerts can be particularly helpful in reducing confusion during an emergency. Additionally, some models offer visual alerts, such as flashing lights, which can be beneficial for individuals with hearing impairments. Consider your household's needs and preferences when selecting the alarm type.
Display and IndicatorsSome CO-smoke detector combos come with digital displays that show current CO levels, battery status, and other important information. These displays can provide real-time data and help you monitor the safety of your home more effectively. Indicators such as LED lights can also show the operational status of the detector. If you prefer having detailed information at a glance, look for models with comprehensive displays and indicators.
Smart FeaturesSmart features in CO-smoke detector combos include connectivity to home automation systems, smartphone alerts, and integration with other smart home devices. These features allow you to receive notifications on your phone if an alarm is triggered, even when you are not at home. Some smart detectors can also be controlled remotely via an app. If you value the convenience and added security of smart technology, consider opting for a model with these features.
Lifespan and WarrantyThe lifespan of a CO-smoke detector combo refers to how long the device is expected to function effectively, typically ranging from 5 to 10 years. It's important to choose a model with a long lifespan to ensure ongoing protection. Additionally, a good warranty can provide peace of mind and protection against defects. Check the manufacturer's recommendations for replacement and the warranty terms to ensure you are making a reliable investment.