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6 Best Carbon Monoxide And Natural Gas Detector 2025 in the United States

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Our Top Picks

#1

Winner

Kidde Carbon Monoxide Detector, Propane, Natural, Methane, & Explosive Gas Alarm, Plug-In Wall with 9-Volt Battery Backup, Digital LED Display

Rating
9.7
Chosen by1,241
Sensor Type
Alarm Type
Sensitivity and Detection Range

Most important from
16197 reviews

Sensor Type
The unit is substantial and simple to use, offering great peace of mind by monitoring carbon monoxide and all forms of natural gas.
Alarm Type
Alarm is loud enough to hear in the house, eight feet away, and can be mounted away from the outlet.
Sensitivity and Detection Range
Tested with a lawn mower running in a closed garage, it started reporting CO levels at around 40 ppm, climbing until the alarm sounded at about 100 ppm.
Display and Indicators
The perfect alarm for a detached garage, detecting smoke, CO, natural gas, and propane with a clear display showing levels even when they're too low to trigger the alarm.
Additional Features
Reasonable price for the quality and features provided, making it a good investment for home safety.

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.

This detector features a digital LED display that clearly shows the level of carbon monoxide detected, or alerts you if explosive gas is present. The loud 85-decibel alarm is essential for alerting you promptly to any danger. The Peak Level Memory feature is another plus, allowing you to check the last time carbon monoxide was detected, which can be useful for monitoring safety in your home.

There are a few drawbacks to consider. While the unit is UL Listed and has a reasonable lifespan of 7 years, the warranty is limited to just 5 years from activation, which may not provide long-term reassurance. Additionally, while the design allows for versatility in placement thanks to the included extension cord, its reliance on being plugged in might limit where you can position it, especially in spaces without convenient outlets. The Kidde CO detector's sensitivity and detection range are adequate for residential use, operating effectively within a broad humidity range, but it may not be suitable for larger commercial spaces that require more extensive coverage. This product is ideal for homeowners seeking an easy-to-install, reliable solution for detecting carbon monoxide and gas leaks.

Rating
9.7
Chosen by1,241
Sensor Type
Alarm Type
Sensitivity and Detection Range

Most important from
16197 reviews

Sensor Type
The unit is substantial and simple to use, offering great peace of mind by monitoring carbon monoxide and all forms of natural gas.
Alarm Type
Alarm is loud enough to hear in the house, eight feet away, and can be mounted away from the outlet.
Sensitivity and Detection Range
Tested with a lawn mower running in a closed garage, it started reporting CO levels at around 40 ppm, climbing until the alarm sounded at about 100 ppm.
Display and Indicators
The perfect alarm for a detached garage, detecting smoke, CO, natural gas, and propane with a clear display showing levels even when they're too low to trigger the alarm.
Additional Features
Reasonable price for the quality and features provided, making it a good investment for home safety.
#2

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

Rating
9.4
Power Source
Alarm Type
Sensitivity and Detection Range

Most important from
299 reviews

Power Source
Installation is straightforward with the included 12VDC connector.
Alarm Type
It's easy to mute the alarm in case of false readings, which is very convenient.
Sensitivity and Detection Range
The device is very sensitive and easy to install, making it beginner-friendly.
Display and Indicators
The screen readout showing the amount of particulate in the air is a great feature.

The Tadeto RV Carbon Monoxide and Propane Gas Alarm is a versatile 2-in-1 device designed specifically for RVs, trailers, and campers. It is equipped with electrochemical sensors that independently detect carbon monoxide and propane gas, offering reliable and high-sensitivity detection. The device runs on a 12V DC power supply, making it ideal for mobile environments. Its audible alarm emits an 85-decibel sound when dangerous levels of gas are detected, coupled with a flashing red light for visual alerts, ensuring users are promptly informed of potential hazards.

The large display with backlight function allows for easy reading of gas levels, even in low-light conditions, and the mute button offers additional convenience for users. Installation is straightforward with included accessories, and users can choose between nut-based or Velcro mounting methods. One notable strength of this product is its dual-gas detection capability, which can save space and cost compared to purchasing separate detectors.

A potential drawback may be its reliance on a corded electric power source, which could limit placement flexibility within the RV. Additionally, users should ensure the 12V power supply is compatible with their specific RV setup. The Tadeto RV Carbon Monoxide and Propane Gas Alarm is an excellent choice for those seeking comprehensive gas detection in their RV, providing both safety and ease of use.

Rating
9.4
Power Source
Alarm Type
Sensitivity and Detection Range

Most important from
299 reviews

Power Source
Installation is straightforward with the included 12VDC connector.
Alarm Type
It's easy to mute the alarm in case of false readings, which is very convenient.
Sensitivity and Detection Range
The device is very sensitive and easy to install, making it beginner-friendly.
Display and Indicators
The screen readout showing the amount of particulate in the air is a great feature.
#3

RV Carbon Monoxide & Propane Gas Alarm, Briidea Dual LP/CO Detector with Separate LED Indicator Light, 100dB Loud Alarm, 12 VDC, Black

The Briidea Dual LP/CO Alarm is a useful device for RV owners who need to ensure their safety from both carbon monoxide and propane gas leaks. This 2-in-1 alarm features a 12 VDC power source, making it suitable for RV environments. It has separate LED indicator lights for propane and carbon monoxide, making it easy to see the current status of gas detection at a glance.

One of its key strengths is the use of UL-listed Japanese Figaro sensors, which are known for accurate detection and reduced false alarms. Additionally, the alarm is loud at 100dB, ensuring you will hear it even within a 100-foot radius. The device also includes a test and mute button for convenience.

Installation is straightforward, and the unit has a lifespan of 5 years, with an indicator light to let you know when it needs to be replaced. However, it's worth noting that the alarm is powered by propane, which may not be ideal for everyone. Also, while it offers good safety features, its primary utility is limited to RVs due to the power source requirements. Therefore, it is an excellent choice for RV owners, but may not be suitable for home use or other settings.

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.

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