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Natural Gas Alarms

10 Best Natural Gas Alarms 2025 in the United States

#1

Winner

9.9 score

TopTes PT199 Natural Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Sources Like Methane, Propane for Home(Includes Battery x2)-Orange

TopTes PT199 Natural Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Sources Like Methane, Propane for Home(Includes Battery x2)-Orange

TOPTES

9.9 score

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The TopTes PT199 Natural Gas Leak Detector is a portable device designed to detect a range of combustible gases, including natural gas, methane, propane, and butane. One of its major strengths is its quick response time; it triggers both visual and audible alarms within 0.5 seconds of gas detection. The alarm intensity increases with the concentration of gas, and the LCD screen turns red at higher gas levels, making it easier to identify the severity of the leak swiftly.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Sensitivity Level
Its sensitivity and accuracy are impressive, detecting even the smallest traces of natural gas quickly.
Alarm Type
The audible and visual alarms provide clear and immediate warnings, enhancing safety and reassurance.
Additional Features
The easy-to-read LCD screen simplifies monitoring gas levels and taking prompt action.
#2
9.8 score

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

Kidde

9.8 score

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The Kidde Carbon Monoxide Detector is a versatile device that detects carbon monoxide, propane, natural gas, methane, and other explosive gases. One of its main strengths is its ease of installation—simply plug it into any standard 120V outlet. It also features a 9-volt battery backup, ensuring protection even during power outages, which is a crucial aspect for consistent safety.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Sensitivity Level
It started reporting CO levels at around 40 ppm, which steadily climbed until the alarm sounded at about 100 ppm.
Power Source
Plugs directly into an outlet, or you can detach the power supply and mount the alarm away from the outlet.
Alarm Type
Alarm is loud enough to hear in the house, eight feet away.
Installation Location
The perfect alarm for a detached garage. Detects smoke, CO, natural gas, and propane, with a display showing levels even when they're too low to trigger the alarm.
Additional Features
Great peace of mind to know that both carbon dioxide and all forms of natural gas will be monitored.
#3
9.6 score

2 Pack Combination Gas & Carbon Monoxide Detectors - Plug in CO Alarm & Natural Gas Detector with Digital Display, CO Detector & Combustible Gas Detector for Home, Easy to Read

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2 Pack Combination Gas & Carbon Monoxide Detectors - Plug in CO Alarm & Natural Gas Detector with Digital Display, CO Detector & Combustible Gas Detector for Home, Easy to Read

KOABBIT

9.6 score

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The Koabbit 2 Pack Combination Gas & Carbon Monoxide Detectors are a reliable choice for home safety, offering dual protection against both gas and carbon monoxide leaks. These detectors boast high sensitivity sensors, using catalytic combustion and electrochemical technology, ensuring accurate and timely detection of hazardous conditions. The digital LCD display is a great feature, clearly showing gas concentration levels, and the 85-decibel alarm is loud enough to alert you promptly in case of danger.

Customer Highlights

A summary of real customer reviews to highlight what shoppers are saying!
Sensitivity Level
Super easy to install—just plug it in—and its high-sensitivity sensors provide accurate, timely alerts for dangerous gas levels.
Power Source
The option for a 9V battery backup means it keeps working even during power outages, offering peace of mind.
Alarm Type
The LCD display shows gas concentrations clearly, and the loud alarm ensures you’re instantly notified of any danger.

Top 10 Best Natural Gas Alarms 2025 in the United States

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TOPTES

Natural Gas Detector, TopTes PT520A Gas Leak Detector with 17-Inch Gooseneck, Locating The Source of Propane, Natural Gas, and Combustible Gas Leak for Home and RV (Includes Battery x3) - Orange

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#1

Winner

9.9 score

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TOPTES

TopTes PT199 Natural Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Sources Like Methane, Propane for Home(Includes Battery x2)-Orange

Sensitivity Level: 50-1,000 ppm
Response Time: 0.5 seconds
Power Source: Battery Powered
Alarm Type: Audible, Visual
Additional Features: Low battery indicator, Auto-power off

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Slide 1

TOPTES

Natural Gas Detector, TopTes PT520A Gas Leak Detector with 17-Inch Gooseneck, Locating The Source of Propane, Natural Gas, and Combustible Gas Leak for Home and RV (Includes Battery x3) - Orange

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#2

9.8 score

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Kidde

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

Power Source: Plug In
Alarm Type: Audible
Installation Location: Standard 120V outlet
Additional Features: Battery backup, LED display, 85-decibel alarm

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#3

9.6 score

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KOABBIT

2 Pack Combination Gas & Carbon Monoxide Detectors - Plug in CO Alarm & Natural Gas Detector with Digital Display, CO Detector & Combustible Gas Detector for Home, Easy to Read

Sensitivity Level: High sensitivity
Power Source: Plug in or Battery
Alarm Type: 85-decibel
Additional Features: Digital LCD, power-saving

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10% OFF
#4

9.3 score

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Klein Tools

Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries

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#5

9.0 score

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AOTIQUAL

Natural Gas Detector CH4, Combustible Gas Methane Alarm Battery Powered with Light & Audible Indicator,Gas Monitor Sensor for Home RV Kitchen Apartment Safety (Battery Included)

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#6

8.7 score

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HSTMYFS

HSTMYFS Natural Gas Leak Detector, Plug-in Propane Natural Gas Detector for Home Kitchen RV, Combustible & Explosive Gas Alarm for LPG, LNG, Methane

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20% OFF
#7

8.4 score

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KOABBIT

2 Packs Gas Detector & Alarm - Koabbit Plug in Natural Gas Detectors & Propane Gas Detectors for Home,RV & Kitchen, Combustible Gas Leak Detector Monitor for LNG, LPG, Methane.

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9% OFF
#8

8.1 score

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Hembisen

3 Packs Natural Gas Detector - Gas Leak Detector for Home,RV, Gas Detectors for Home Natural Gas,Combustible Gas Detector for LNG, LPG,Propane,Methane.

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6% OFF
#9

7.8 score

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FIRST ALERT

FIRST ALERT Combination Explosive Gas and Carbon Monoxide Alarm with Backlit Digital Display, GCO1CN

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#10

7.6 score

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ACEGMET

Gas Detector, ACEGMET 4 Gas Monitor Multiple Indicator (Vibration, Audible, Visual) H2S, O2, CO and LEL 4 Gas Monitor Personal Rechargeable 4 Gas Meter 2 Years of Sensor Life Gas Sniffer

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6% OFF
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Buying Guide for the Best Natural Gas Alarms

Choosing the right natural gas alarm is crucial for ensuring the safety of your home or business. Natural gas alarms detect the presence of gas leaks and alert you before they become dangerous. When selecting a natural gas alarm, it's important to consider several key specifications to ensure you get the best fit for your needs. Here are the key specs to look for and how to navigate them.
Sensitivity LevelSensitivity level refers to how much gas concentration the alarm can detect. This is important because a more sensitive alarm can detect smaller leaks, providing earlier warnings. Sensitivity levels are usually measured in parts per million (ppm). Alarms with lower ppm thresholds are more sensitive. If you want maximum safety, choose an alarm with a lower sensitivity level. For general home use, a moderate sensitivity level is usually sufficient.
Response TimeResponse time is the amount of time it takes for the alarm to activate once it detects gas. This is crucial because faster response times mean quicker alerts, allowing you to take action sooner. Response times can vary from a few seconds to several minutes. For high-risk areas or if you want the quickest possible alert, choose an alarm with a faster response time. For less critical areas, a slightly slower response time may be acceptable.
Power SourceThe power source of a natural gas alarm can be either battery-operated or hardwired. Battery-operated alarms are easier to install and can be placed anywhere, but require regular battery changes. Hardwired alarms are connected to your home's electrical system and may offer more reliability but require professional installation. Choose a battery-operated alarm for flexibility and ease of installation, or a hardwired alarm for a more permanent solution.
Alarm TypeAlarm type refers to how the device alerts you to the presence of gas. Common types include audible alarms, visual indicators, and smart alarms that send notifications to your phone. Audible alarms are loud and can wake you up, visual indicators are useful for the hearing impaired, and smart alarms offer convenience and remote monitoring. Choose the alarm type based on your personal preferences and needs. For comprehensive safety, consider a model that offers multiple types of alerts.
Installation LocationWhere you install your natural gas alarm can affect its performance. Some alarms are designed for specific locations like kitchens or basements, while others can be placed anywhere. It's important to install the alarm in areas where gas leaks are most likely to occur. For general home use, place alarms near gas appliances and in rooms where gas lines are present. For businesses, consider areas with high gas usage or storage.
Additional FeaturesAdditional features can enhance the functionality of your natural gas alarm. These may include features like self-testing, battery backup, and connectivity to home security systems. Self-testing ensures the alarm is always working, battery backup provides power during outages, and connectivity allows for integrated safety solutions. Choose additional features based on your specific needs and preferences for added peace of mind.

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