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10 Best Smoke And Co Alarm 2025 in the United States
#1
Winner
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 a solid safety solution for home use. This model features both a photoelectric smoke sensor and an electrochemical CO sensor, which enhances its reliability in detecting both smoke and carbon monoxide. One of its standout strengths is the ability to interconnect up to 24 devices, creating a robust safety network throughout your home. This feature ensures that if one alarm detects danger, all interconnected units will sound an alarm, providing an early warning system that can cover a large area, up to 820 feet in transmission range.
Rating
9.8
Chosen by1,335
Power Source
Interconnectivity
Smart Features
Most important from
5182 reviews
#2
FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White
The First Alert BRK SC9120FF is a solid choice for those looking to enhance their home safety with a dual-function smoke and carbon monoxide detector. It utilizes both electrochemical and ionization sensors, offering reliable detection for different types of smoke and CO, which is a significant strength in ensuring comprehensive coverage. The hardwired power source with a battery backup ensures continuous operation even during power outages, making it dependable in all situations. This feature is especially crucial for maintaining safety continuity.
#3
X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Auto-Check, 3-Pack
The X-Sense Smoke Detector Carbon Monoxide Detector Combo (SC01) is designed for those seeking a reliable, standalone unit that offers 2-in-1 protection against both smoke and carbon monoxide. This model uses a combination of photoelectric and electrochemical sensors, providing prompt alerts with minimal false alarms, which is great for ensuring safety. The alarms are very loud, reaching 85 dB, ensuring that you can hear them from different parts of your home.
Rating
9.3
Power Source
Smart Features
Most important from
2131 reviews
Top 10 Best Smoke And Co Alarm 2025 in the United States
#1
Winner
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
Type of Sensor: electrochemical, photoelectric
Power Source: Battery Powered
Interconnectivity: up to 24 devices, 820 feet
Smart Features: LCD display, no Wi-Fi
Lifespan and Maintenance: 10-year battery, 60-day guarantee, 5-year warranty
Chosen by 1335 this week
FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White
FIRST ALERT BRK SC9120FF Hardwired Smoke and Carbon Monoxide (CO) Detector with Battery Backup, 1 pack , White
Type of Sensor: electrochemical, ionization
Power Source: Battery, Hardwired
Interconnectivity: connects with BRK or First Alert
Lifespan and Maintenance: 10-year warranty, regular battery checks
Certifications and Standards: Certified to UL standards
X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Auto-Check, 3-Pack
X-Sense Smoke Detector Carbon Monoxide Detector Combo, 10-Year Battery Smoke Detector with Display, Auto-Check, 3-Pack
Type of Sensor: photoelectric, electrochemical
Power Source: 10-year sealed lithium battery
Interconnectivity: None
Smart Features: None
Lifespan and Maintenance: 10 years, minimal maintenance
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
Type of Sensor: Photoelectric
Power Source: Battery Powered
Interconnectivity: Wireless
Smart Features: App control, real-time alerts
Lifespan and Maintenance: 10-year lifespan, 5-year battery
First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack
First Alert Combination Smoke & Carbon Monoxide Alarm, Interconnect Hardwire Detector with Battery Backup, SMICO100-AC, 1-Pack
Type of Sensor: Ionization
Power Source: Corded Electric with battery backup
Interconnectivity: All compatible alarms will sound
Lifespan and Maintenance: Test/silence button for checks
Certifications and Standards: Adheres to industry standards
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Up to 23% off
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators
Kidde Hardwired Smoke & Carbon Monoxide Detector, 10-Year Battery Backup, Voice Alerts, Interconnectable LED Warning Light Indicators
Type of Sensor: Photoelectric, Electrochemical
Power Source: Hardwired, lithium-ion battery backup
Interconnectivity: Yes
Smart Features: Voice alerts, LED notifications, self-testing
Lifespan and Maintenance: 10-year warranty, weekly testing
Certifications and Standards: UL 217 9th, UL 2034 4th
X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo with Replaceable Battery, Wi-Fi Smoke and Carbon Monoxide Detector with Real-Time App Notifications, SC07-WX, 3-Pack
X-Sense Smart Smoke Detector Carbon Monoxide Detector Combo with Replaceable Battery, Wi-Fi Smoke and Carbon Monoxide Detector with Real-Time App Notifications, SC07-WX, 3-Pack
Type of Sensor: Photoelectric, Electrochemical
Power Source: Battery Powered
Interconnectivity: No interconnectivity
Smart Features: Wi-Fi, Home Security app, Premium service
Lifespan and Maintenance: Decade-long lifespan, 5-year warranty
First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMCO100, 1-Pack,White
First Alert Combination Smoke & Carbon Monoxide Alarm, Battery Operated Detector with Test & Silence Button, SMCO100, 1-Pack,White
Type of Sensor: Photoelectric
Power Source: Battery Powered
Interconnectivity: None
Smart Features: None
Lifespan and Maintenance: 10-year warranty; replaceable batteries; warning
Certifications and Standards: Meets safety industry standards
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
Kidde Hardwired Smoke & Carbon Monoxide Detector, AA Battery Backup Smoke Alarm, Interconnectable, LED Warning Light Indicators, 2 Pack
Type of Sensor: Photoelectric, Electrochemical
Power Source: Hardwired, 2 AA batteries
Interconnectivity: All interconnected units will alert
Lifespan and Maintenance: 10-year warranty, self-testing, test button
Certifications and Standards: UL and FCC standards
#10
First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery , White
First Alert BRK PRC710 Smoke and Carbon Monoxide Alarm with Built-In 10-Year Battery , White
Type of Sensor: Electrochemical, Photoelectric
Power Source: Battery Powered
Lifespan and Maintenance: 10-year maintenance-free
Certifications and Standards: UL standards, 10-year legislation
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Buying Guide for the Best Smoke And Co Alarm
Choosing the right smoke and carbon monoxide (CO) alarm is crucial for ensuring the safety of your home and family. These devices are designed to detect the presence of smoke and CO, which can be life-threatening if not detected early. When selecting a smoke and CO alarm, 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.Type of SensorThe type of sensor in a smoke and CO alarm determines what kind of threats it can detect. Smoke alarms typically use ionization or photoelectric sensors, while CO alarms use electrochemical sensors. Ionization sensors are better at detecting fast-flaming fires, while photoelectric sensors are more responsive to smoldering fires. Some alarms combine both types for comprehensive coverage. For CO detection, electrochemical sensors are the most reliable. Consider your home environment and potential fire risks when choosing the sensor type.
Power SourceSmoke and CO alarms can be powered by batteries, hardwired into your home's electrical system, or a combination of both. Battery-powered alarms are easy to install and can be placed anywhere, but they require regular battery replacement. Hardwired alarms are more reliable as they are connected to your home's power supply, often with a battery backup in case of power outages. Combination alarms offer the best of both worlds. Choose a power source that fits your installation preferences and maintenance capabilities.
InterconnectivityInterconnectivity refers to the ability of multiple alarms to communicate with each other. When one alarm detects smoke or CO, all interconnected alarms will sound, providing a more comprehensive alert system. This feature is especially useful in larger homes or multi-story buildings. Some alarms offer wireless interconnectivity, making installation easier without the need for additional wiring. Consider interconnectivity if you want to ensure that an alarm in one part of your home can alert the entire household.
Smart FeaturesSmart smoke and CO alarms can connect to your home Wi-Fi network and provide additional features such as remote notifications, integration with smart home systems, and self-testing capabilities. These alarms can send alerts to your smartphone if smoke or CO is detected, even when you're not at home. They can also be integrated with other smart devices for enhanced safety and convenience. If you value remote monitoring and advanced features, a smart alarm might be the right choice for you.
Lifespan and MaintenanceThe lifespan of a smoke and CO alarm is an important factor to consider. Most alarms have a lifespan of 7-10 years, after which they need to be replaced. Some alarms come with end-of-life indicators that alert you when it's time for a replacement. Regular maintenance, such as testing the alarm and replacing batteries, is crucial for ensuring its effectiveness. Choose an alarm with a clear lifespan indication and easy maintenance requirements to ensure long-term reliability.
Certifications and StandardsCertifications and standards ensure that the smoke and CO alarm meets safety and performance requirements. Look for alarms that are certified by recognized organizations such as UL (Underwriters Laboratories) or ETL (Intertek). These certifications indicate that the alarm has been tested and meets specific safety standards. Choosing a certified alarm provides assurance that the device will perform reliably in detecting smoke and CO.