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8 Best Carbon Monoxide And Natural Gas Detector 2026 in the United States
#1
Winner
Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display
The Kidde Carbon Monoxide Detector is designed to keep your home safe from dangerous gases like carbon monoxide and explosive gases. Its plug-in design makes installation straightforward—simply find a standard outlet, and you’re good to go. One notable strength is the 9-volt battery backup, which ensures that the detector continues working even during power outages, providing you with peace of mind.
Rating
10.0
Chosen by1,224
Sensor Type
Alarm Type
Sensitivity and Detection Range
Most important from
16719 reviews
#2
Safe T Alert - Dual LP/CO Alarm - Flush Mount Black - 35-742-BL
The Safe-T-Alert by MTI Industries 35-742-BL is a solid choice for anyone in need of a reliable carbon monoxide and natural gas detector. Its dual functionality allows it to simultaneously detect both gas leaks and carbon monoxide, making it highly efficient for safety in various settings, particularly in RVs and other mobile homes. One of its standout features is the battery-powered design, which eliminates the hassle of changing batteries frequently. With a reliable 12V power source, users can trust that the alarm will work when needed most, even in extreme temperatures ranging from -40°F to +158°F.
Rating
7.6
Power Source
Sensitivity and Detection Range
Additional Features
Most important from
2258 reviews
#3
Combination Gas and Carbon Monoxide Detector Plug-in | CO Alarm & Natural Gas Combustible Detector | Digital Display, Battery Backup, Easy Install | for Home Kitchen Safety Monitoring 1-Pack
The Vzmcov Plug-in Gas and Carbon Monoxide Detector is a versatile safety device designed to detect both carbon monoxide and a range of combustible gases including propane, LPG, and methane. It utilizes catalytic and electrochemical sensors for high accuracy and sensitive detection. This makes it a reliable choice for homes, kitchens, cars, tents, and hotels, providing broad coverage for various environments where gas leaks can occur.
Rating
7.6
Power Source
Alarm Type
Additional Features
Most important from
662 reviews
Top 8 Best Carbon Monoxide And Natural Gas Detector 2026 in the United States
#1
Winner
Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display
Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display
Sensor Type: Electrochemical
Power Source: Plug In, 9-volt battery
Alarm Type: Audible, 85-decibel
Sensitivity and Detection Range: Residential use
Display and Indicators: Digital LED display
Certification and Compliance: UL Listed
Additional Features: Peak Level Memory, 7-year lifespan
Chosen by 1224 this week
Safe T Alert - Dual LP/CO Alarm - Flush Mount Black - 35-742-BL
Safe T Alert - Dual LP/CO Alarm - Flush Mount Black - 35-742-BL
Sensor Type: Photoelectric
Power Source: Battery Powered
Alarm Type: Audible
Sensitivity and Detection Range: Detects CO and natural gas
Certification and Compliance: Certified by RVIA/NFPA, UL 1484 RV, UL 2034 RV
Additional Features: Flush mount, -40°F to +158°F
Combination Gas and Carbon Monoxide Detector Plug-in | CO Alarm & Natural Gas Combustible Detector | Digital Display, Battery Backup, Easy Install | for Home Kitchen Safety Monitoring 1-Pack
Combination Gas and Carbon Monoxide Detector Plug-in | CO Alarm & Natural Gas Combustible Detector | Digital Display, Battery Backup, Easy Install | for Home Kitchen Safety Monitoring 1-Pack
Sensor Type: Catalytic, Electrochemical
Power Source: Battery, 120V outlet
Alarm Type: Audible
Display and Indicators: LED display
Additional Features: Dual detection, 9V rechargeable battery
RV Carbon Monoxide & Propane Gas Alarm, Briidea Dual LP/CO Detector with Separate LED Indicator Light, 100dB Loud Alarm, 12 VDC, Black
RV Carbon Monoxide & Propane Gas Alarm, Briidea Dual LP/CO Detector with Separate LED Indicator Light, 100dB Loud Alarm, 12 VDC, Black
Sensor Type: UL-listed Japanese Figaro sensors
Power Source: 12 VDC
Alarm Type: Audible
Display and Indicators: LED lights for propane, CO
Additional Features: Test/mute button, 100dB alarm, 5-year lifespan
Safe-T-Alert by MTI Industries 35-742-BR Dual LP/CO Alarm - 12V, 35 Series Flush Mount, Brown
Safe-T-Alert by MTI Industries 35-742-BR Dual LP/CO Alarm - 12V, 35 Series Flush Mount, Brown
Sensor Type: Photoelectric
Power Source: Battery Powered
Alarm Type: Audible
Certification and Compliance: RVIA/NFPA, UL 1484 RV, UL 2034
Additional Features: 12V power, Dual LP/CO detection, Flush mount
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Wireless Natural Gas Alarm - Plug in Explosive Gas Detector combo for Flammable Gases, Methane, Propane, Butane, LPG, LNG, WiFi Gas Leak Sensor, Natural Gas Leak Detector for Home, RV, Trailer, Camper
Wireless Natural Gas Alarm - Plug in Explosive Gas Detector combo for Flammable Gases, Methane, Propane, Butane, LPG, LNG, WiFi Gas Leak Sensor, Natural Gas Leak Detector for Home, RV, Trailer, Camper
Sensor Type: Photoelectric
Power Source: Plug in
Alarm Type: Loud sounds, flashing LEDs
Sensitivity and Detection Range: 6%LEL ± 3%LEL (CH4)
Display and Indicators: Flashing LEDs
Additional Features: Wi-Fi, real-time smartphone alerts
Combination Natural Gas and Carbon Monoxide Detector Plug in 2-in-1 Co Detector and Combustible Gas Detector,Propane,LPG,Gas Leak Detector for Kitchen/Home.
Combination Natural Gas and Carbon Monoxide Detector Plug in 2-in-1 Co Detector and Combustible Gas Detector,Propane,LPG,Gas Leak Detector for Kitchen/Home.
Sensor Type: catalytic, electrochemical
Power Source: AC outlet, 9V battery
Alarm Type: Audible, 85-decibel
Display and Indicators: LCD display
Additional Features: Detects LPG, natural gas, propane
Tadeto RV Carbon Monoxide and Propane Gas Alarm, 12V DC Hardwired CO/LPG Gas Leak Alarm with Light and Audible Indicator, RV Propane Detector with Reset/Backlight for RV/Trailer/Camper
Tadeto RV Carbon Monoxide and Propane Gas Alarm, 12V DC Hardwired CO/LPG Gas Leak Alarm with Light and Audible Indicator, RV Propane Detector with Reset/Backlight for RV/Trailer/Camper
Sensor Type: Electrochemical
Power Source: 12V DC
Alarm Type: 85-decibel sound, red light
Sensitivity and Detection Range: High-sensitivity detection
Display and Indicators: Large display, backlight, red light
Additional Features: Mute button, dual-gas detection, Velcro
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Buying Guide for the Best Carbon Monoxide And Natural Gas Detector
Choosing the right carbon monoxide and natural gas detector is crucial for ensuring the safety of your home or workplace. These detectors can alert you to dangerous levels of carbon monoxide and natural gas, which are both colorless and odorless, making them difficult to detect without the proper equipment. When selecting a detector, it's important to consider several key specifications to ensure you get a device that meets your needs and provides reliable protection.Sensor TypeThe sensor type in a detector determines how it detects gases. Common types include electrochemical sensors for carbon monoxide and catalytic bead sensors for natural gas. Electrochemical sensors are highly accurate and respond quickly to carbon monoxide, making them ideal for home use. Catalytic bead sensors are effective for detecting natural gas and are often used in industrial settings. Choose a detector with the appropriate sensor type based on the specific gases you need to monitor and the environment in which it will be used.
Power SourceDetectors can be powered by batteries, hardwired into your home's electrical system, or plugged into an outlet. Battery-powered detectors are easy to install and can be placed anywhere, but they 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. Plug-in detectors are convenient and easy to use, but they need to be placed near an outlet. Consider your installation preferences and the availability of power sources when choosing a detector.
Alarm TypeThe alarm type refers to how the detector alerts you to the presence of gas. Most detectors use audible alarms, which emit a loud sound to alert you. Some models also include visual alarms, such as flashing lights, which can be helpful for individuals with hearing impairments. Advanced models may offer voice alerts or connectivity to smart home systems, allowing for notifications on your phone. Choose an alarm type that ensures you will be promptly and effectively alerted in case of an emergency.
Sensitivity and Detection RangeSensitivity refers to the detector's ability to detect low levels of gas, while the detection range indicates the area the detector can effectively monitor. Higher sensitivity is important for early detection of gas leaks, but it may also lead to more false alarms. The detection range should cover the area where the detector is installed. For larger spaces, you may need multiple detectors to ensure comprehensive coverage. Consider the size of the area you need to monitor and the importance of early detection when evaluating sensitivity and detection range.
Display and IndicatorsMany detectors come with digital displays that show the current gas levels, battery status, and other important information. Indicators such as LED lights can provide visual cues about the detector's status, such as power, alarm, and fault conditions. A clear and easy-to-read display can help you quickly assess the situation and take appropriate action. Choose a detector with a display and indicators that provide the information you need in a format that is easy to understand.
Certification and ComplianceCertification and compliance with safety standards ensure that the detector has been tested and meets specific safety requirements. Look for detectors that are certified by recognized organizations such as Underwriters Laboratories (UL) or the Canadian Standards Association (CSA). These certifications indicate that the detector has undergone rigorous testing and is reliable. Always choose a detector that meets or exceeds the safety standards for your region to ensure maximum protection.
Additional FeaturesSome detectors come with additional features such as interconnectivity, which allows multiple detectors to communicate with each other, or smart home integration, which enables remote monitoring and control via a smartphone app. Other features may include a built-in battery backup, end-of-life indicators, and test/reset buttons. Consider which additional features are important to you and how they can enhance the functionality and convenience of the detector.