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10 Best Gas Leak Detectors 2025 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 and Explosive Gas Detector is designed to keep your home safe by detecting carbon monoxide, propane, natural gas, methane, and other explosive gases. Its simplicity in installation makes it appealing; you just plug it into a standard 120V outlet. The 9-volt battery backup ensures it remains functional even during a power outage, providing continuous protection.
Rating
9.9
Chosen by1,410
Type of Gas Detected
Sensitivity
Power Source
Most important from
16045 reviews
#2
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
The TopTes PT199 Natural Gas Leak Detector is a compact and portable device designed to identify the presence of combustible gases like natural gas, methane, and propane. One of its standout features is the dual alarm system, which includes both audible and visual alerts. This alarm activates quickly—within half a second—enhancing safety by notifying you promptly if gas is detected. The LCD screen's color change to red when gas levels are high is a convenient visual cue, especially for those who may not hear the alarm immediately.
Rating
9.8
Sensitivity
Alarm Type
Most important from
5810 reviews
#3
Combination Gas & Carbon Monoxide Detector, Plug in Carbon Monoxide Alarm,Natural Gas Detector,Propane,Methane,4-in-1 Combustible Gas & CO Detector with Fahrenheit(°F) & Humidity for Home,RV,Apartment
The 4-in-1 Gas & Carbon Monoxide Detector from KOABBIT is a versatile device designed to increase safety at home, in apartments, and RVs. One of its biggest strengths is its ability to detect multiple types of gases, including natural gas, propane, methane, and carbon monoxide. This makes it a valuable tool for comprehensive protection against various gas leaks.
Rating
9.6
Power Source
Installation Location
Most important from
332 reviews
Top 10 Best Gas Leak Detectors 2025 in the United States
#1
Winner
9.9 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
Type of Gas Detected: carbon monoxide, propane, natural gas, methane
Power Source: Plug In, 9-volt battery backup
Alarm Type: Audible, 85-decibel
Installation Location: Plug into a standard 120V outlet
Certification and Standards: UL standards
Chosen by 1410 this week
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
Type of Gas Detected: Natural gas, methane, propane
Sensitivity: 50-1,000 ppm for methane
Power Source: Battery Powered
Alarm Type: Audible, Visual
Combination Gas & Carbon Monoxide Detector, Plug in Carbon Monoxide Alarm,Natural Gas Detector,Propane,Methane,4-in-1 Combustible Gas & CO Detector with Fahrenheit(°F) & Humidity for Home,RV,Apartment
Combination Gas & Carbon Monoxide Detector, Plug in Carbon Monoxide Alarm,Natural Gas Detector,Propane,Methane,4-in-1 Combustible Gas & CO Detector with Fahrenheit(°F) & Humidity for Home,RV,Apartment
Type of Gas Detected: natural gas, propane, methane, CO
Sensitivity: highly reliable sensor
Power Source: Plug in
Alarm Type: 85dB Alarm
Installation Location: home, apartments, RVs, kitchens
PT520A Natural Gas Detector, Gas Leak Detector with 17-Inch Gooseneck, Locating The Source Like Propane, Methane, and Butane for Home and RV (Includes Battery x3) - Orange
PT520A Natural Gas Detector, Gas Leak Detector with 17-Inch Gooseneck, Locating The Source Like Propane, Methane, and Butane for Home and RV (Includes Battery x3) - Orange
Type of Gas Detected: methane, propane, butane
Sensitivity: 50-10,000 ppm for methane
Power Source: Battery Powered
Alarm Type: Audible & Visual
Installation Location: home or RV
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
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
Type of Gas Detected: combustible gases, carbon monoxide, natural gas
Sensitivity: highly sensitive
Power Source: Plug in or Battery Power
Alarm Type: 85-decibel alarm
Related Products
Up to 30% off
IQYEF 4-in-1 Carbon Monoxide Detectors, Natural Gas Leak Detector & Carbon Monoxide Detectors Plug-in & Battery Backup, HD Digital Display for CO, Gas, Temp, Humidity - Home, RV, Apartment Safety
IQYEF 4-in-1 Carbon Monoxide Detectors, Natural Gas Leak Detector & Carbon Monoxide Detectors Plug-in & Battery Backup, HD Digital Display for CO, Gas, Temp, Humidity - Home, RV, Apartment Safety
Type of Gas Detected: Carbon monoxide, natural gas
Sensitivity: CO 0-999 PPM, gas 0-10% LEL
Power Source: AC power with 9V battery backup
Alarm Type: Audible alarm 85 dB, flashing lights
Installation Location: Kitchens, bedrooms, garages
Plug in Combination Gas & Carbon Monoxide Detectors - Natural Gas Detectors & Carbon Monoxide Alarm for Home, Co Detector & Gas Detectors with Digital Display,Holds 9V Battery (not Included)
Plug in Combination Gas & Carbon Monoxide Detectors - Natural Gas Detectors & Carbon Monoxide Alarm for Home, Co Detector & Gas Detectors with Digital Display,Holds 9V Battery (not Included)
Type of Gas Detected: Natural gas, CO, LPG, methane, coal
Power Source: Plug in or 9V battery backup
Alarm Type: 85-decibel alarm
Installation Location: Plug in
Natural Gas Detector, TopTes PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Leak Sources Like Methane, Propane for Home (Includes Battery x2)-Orange
Natural Gas Detector, TopTes PT177 Gas Leak Detector with Audible & Visual Alarm, Portable Gas Sniffer to Locate Combustible Leak Sources Like Methane, Propane for Home (Includes Battery x2)-Orange
Type of Gas Detected: methane, propane, butane, natural gas
Sensitivity: 0.5 to 3 seconds
Power Source: Battery Powered
Alarm Type: Audible, Visual
Installation Location: homes, RVs, DIY projects
Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries
Klein Tools ET120 Gas Leak Detector, Combustible Gas Leak Tester with 18-Inch Gooseneck Has Range 50 - 10,000 ppm, Includes Pouch, Batteries
Type of Gas Detected: Combustible Gas
Sensitivity: 50 to 10,000 ppm
Power Source: Battery Powered
Alarm Type: Audible and Visual
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Buying Guide for the Best Gas Leak Detectors
Choosing the right gas leak detector is crucial for ensuring safety in your home or workplace. Gas leak detectors are designed to alert you to the presence of dangerous gases, helping to prevent accidents and health hazards. When selecting a gas leak detector, it's important to consider several key specifications to ensure you get a device that meets your needs and provides reliable performance.Type of Gas DetectedGas leak detectors can be designed to detect different types of gases such as natural gas, propane, carbon monoxide, or a combination of these. This spec is important because it determines the kind of gas hazards the detector can identify. If you use natural gas for heating, cooking, or other purposes, you'll need a detector that can sense natural gas. For homes with propane appliances, a propane detector is essential. Some detectors can sense multiple gases, providing broader protection.
SensitivitySensitivity refers to the detector's ability to detect low levels of gas. This is important because higher sensitivity means the detector can alert you to a leak before it becomes dangerous. Sensitivity is usually measured in parts per million (ppm). Detectors with higher sensitivity (lower ppm) are better for early detection. For general home use, a sensitivity of around 10-50 ppm is typically sufficient. For industrial or high-risk environments, you might need a detector with even higher sensitivity.
Power SourceGas leak detectors can be powered by batteries, plugged into an electrical outlet, or hardwired into your home's electrical system. This spec is important because it affects the detector's reliability and convenience. Battery-powered detectors are easy to install and can continue to operate during power outages, but they require regular battery replacement. Plug-in detectors are convenient and don't need battery changes, but they won't work during a power outage unless they have a battery backup. Hardwired detectors are the most reliable but require professional installation.
Alarm TypeThe alarm type refers to how the detector alerts you to the presence of gas. This is important because it affects how quickly and effectively you can respond to a leak. Common alarm types include audible alarms (loud beeping or sirens), visual alarms (flashing lights), and digital displays showing gas levels. Some detectors also offer smartphone alerts or integration with smart home systems. For most users, a combination of audible and visual alarms is ideal, ensuring you notice the alert even if you're not in the same room.
Installation LocationThe installation location is where the detector should be placed for optimal performance. This is important because gas behavior varies; for example, natural gas rises while propane sinks. Detectors should be installed according to the type of gas they detect. For natural gas, place the detector high on a wall or ceiling. For propane, install it near the floor. Some detectors come with guidelines for placement, ensuring you get the best performance. Consider where gas appliances are located and install detectors nearby for maximum safety.
Certification and StandardsCertification and standards indicate that the detector has been tested and meets safety and performance criteria. This is important because it ensures the detector is reliable and effective. Look for detectors that meet standards such as UL (Underwriters Laboratories) or CSA (Canadian Standards Association). These certifications provide assurance that the detector has undergone rigorous testing. Always choose a certified detector to ensure it meets safety requirements and provides accurate detection.