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Updated: 08 Oct 2025

10 Best Combustible Gas Detectors

#1
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Gas Leak Detector & Natural Gas Detector: Portable Gas Sniffer to Locate Leaks of Multiple Combustible Gases Like Propane, Methane, LPG, LNG, Fuel, Sewer Gas with 12" Flexible Sensor Neck

Brand: EG
$66.58
⭐ 4.6
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    DETECTS A WIDE RANGE OF COMBUSTIBLE GASES: Accurately detects gas leaks from methane (natural gas), propane, butane, ethanol, alcohol, gasoline, kerosene, sewer gas, and more. Ideal gas leak detector for home safety, RV, garage, or industrial use.
  • FLEXIBLE SENSOR NECK FOR HARD-TO-REACH AREAS: This propane and natural gas leak detector features a 12-inch bendable gooseneck probe that easily reaches gas pipes, fittings, and confined spaces. Great for HVAC techs, inspectors, and DIY users.
  • VISUAL & AUDIBLE GAS LEAK ALARMS: Equipped with a loud 85 dB alarm and 6 LED indicators to show the presence and concentration of gas. Alerts you instantly to natural gas or propane leaks before they become dangerous.
  • ADJUSTABLE SENSITIVITY FOR PRECISION DETECTION: Easily fine-tune sensitivity with the dial to locate even the smallest gas leaks or ignore background gas levels. Helps detect combustible and explosive gas leaks quickly and accurately.
  • LIFETIME WARRANTY + FREE GAS SAFETY EBOOK: Includes lifetime support and replacement warranty. Designed by gas detection experts with a chemist on staff. Comes with a 20+ page digital guide on gas and air quality safety for added value.
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#2
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Gas Leak Detector, Natural Gas Detector with Audible and Visual Alarm, Portable Gas Sniffer for Home RV, High Sensitivity Combustible Gas Detector for Locating Methane Propane

Brand: TMHCRDS
$14.98
⭐ 4.2
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    [High and Low Sensitivity Mode] The gas leak detector has double mode detection Low sensitivity: 500 to 1000 ppm; High sensitivity: 50 to 500 ppm. Accurate and reliable detection of gas leakage.
  • [Visual and Audio Gas Alarm] The gas detector adopts visual alarm and audio alarm, and the detection speed can be as fast as 0.5 seconds. When the bar graph increases and the detector beeps, you are reminded that gas has been detected. The alarm increases with the gas volume, and the LCD turns red when the gas concentration is high.
  • [Battery Powered] The natural gas leakage detector uses 2 AAA batteries (excluding). The system warm-up time is about 30 seconds. When the battery voltage is lower than 2.4V, the low battery indicator will be on. No operation for 5 minutes or automatic shutdown for gas detection, saving energy.
  • [Portable and Easy to Store] Compact gas detector with pen hook can be put in shirt pocket. Non slip texture is easy to hold. The natural gas detector is easy to store in the storage bag.
  • [Detectable Gas] Quickly detect and locate known flammable gas leakage, such as liquefied petroleum gas, methane, ethane, propane, butane, natural gas, coal gas, gas fuel, sewer gas, liquefied natural gas, etc., accurately locate the leakage point, reduce the leakage risk, and protect the safety of family members and property.
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#3
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Gas Leak Detector; VITITE Propane and Natural Gas Detector; Mini Portable Gas Alarm to Locate Combustible Gas Leak Sources for Home and RV (Includes 2 Batteries & Carrying Pouch) - Orange, PT202

Brand: VITITE
$39.50
⭐ 4.1
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    Reliable Gas Leak Detector: The VITITE Gas Leak Detector is known for its reliable performance and accurate detection of methane, natural gas, propane, butane, LPG, LNG, gasoline, sewer gas, and other combustible gas leaks. It assists you in protecting the safety of your home and property anytime, anywhere
  • Mini Portable Design: The natural and propane gas detector is pocket-sized and can be easily clipped onto your collar. Powered by AAA batteries, perfect for home use and RV enthusiasts. Includes a handy carrying pouch for convenient storage
  • Easy to Use: Press the red button on and warm-up for a 20-second preheating periodg. Point it towards suspicious areas, and it quickly detects leaks in just 0.5 seconds. An 85dB audible alarm and an LCD screen display the leak concentration. Use the green button to adjust sensitivity for detecting smaller leaks
  • Low Power Consumption + Durable: It features a low-power chip. With the included batteries, it can run for over 140 minutes. When the battery is running low, a low battery icon appears on the display screen to remind you to replace it promptly. It also automatically shuts down after 20 minutes of inactivity to conserve battery power. Plus, the sensor's lifespan exceeds 5 years
  • What You'll Get: Gas Leak Detector X1, AAA Batteries X2, User Manual X1, Carrying Pouch X1. In addition, you'll receive 36 months of after-sales service, and lifelong technical support. Our team of professional engineers is available to assist you with any questions or concerns you may have. Feel free to contact us anytime
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#4
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TopTes PT520A Natural Gas Detector, 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

Brand: TOPTES
$85.54
⭐ 4.8
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    Effective Gas Leak Detector: The TOPTES PT520A natural gas detector detects leaks of methane, propane, natural gas, LPG, butane, and more in tight spaces.
  • Flexible Probe: The 17-inch gooseneck allows easy access to hard-to-reach areas like pipelines, storage tanks, gas fireplaces, and basements, ideal for both indoor and outdoor leak detection
  • Visual and Audible Alarm: PT520A responds in 0.5 seconds, with 7 colored bars and a 75dB alarm that increase with gas concentration. Detection range: 50-10,000 ppm (Methane). Detection distance: 1-5cm
  • User-Friendly Functions: Enable or disable Auto Power-Off with the APO button to save power after 10 minutes of inactivity. The Mute button silences the alarm, and the non-slip, wear-resistant design ensures a secure, comfortable grip for easy handling
  • What You Get: 1PT520A Gas Leak Detector, 3AAA Batteries, 1Protective Case, and 1User Manual. Allow 30 seconds for warm-up before use
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#5
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Klein Tools Combustible Gas Leak Detector, Detection range: ~50 to 10,000 ppm*, ET120

Brand: KLEIN TOOLS
$292.00
⭐ 4.4
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    Combustible Gas Leak Detector: This portable gas leak tool provides audible and visual alarms in the presence of methane, propane and other combustible gases at concentrations as low as 50 ppm; The perfect choice for HVAC professionals
  • Lightweight, Reliable Tool: The ET120 detects ppm (based on methane) from 50 to 10,000 with five red LED's and 85db audible indicators; Audible indicator beeps at a greater frequency the higher the gas concentration that is sensed
  • Wide Range of Detection: Gas detector with two levels of sensitivity; High intensity of approximately 50 to 1,000 ppm and low intensity of approximately 1,000 to 10,000 ppm; Automatic zero-point calibration at power-up
  • Simple-to-Use Intuitive Interface: Featuring 18 flexible gooseneck that expands the sensors reach and clips onto meter for storage; Over-moulded body for a comfortable grip; Designed to deliver simultaneous visual and audible indicators when gas concentration is detected
  • American Quality Tools: Our products exceed the IEC standards; Klein Tools has been manufacturing tools in America since 1857; We are world leaders in the design, development and production of high quality professional tools
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#6
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BSIDE Gas Leak Detector Rechargeable Natural Gas Tester with Vibrate & Audible and Visual Alarm, Portable Gas Sniffer Locator for Combustible Methane Propane Alcohols Acetone Ethanol

Brand: BSIDE
$39.99
⭐ 4.1
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    [Rechargeable]: Portable gas leak detector comes with a rechargeable battery & charging cable, you will never worry about power problem.
  • [Triple Mode Alarm]: The handheld gas leak tester will vibrate, there is fast alarm sounds, and the screen will display green or red backlight when detect combustible gas.
  • [Various of Combustible Gases Detection]: BSIDE G1 can accurately help you locate the gas leakage of various combustible gases in tight spaces, such as LPG, methane, ethane, propane, butane, natural gas, coal gas, gas fuel, liquefied natural gas, etc.
  • [Protective Case]: Durable protective silicone case for protection against shocks, friction and bumps. This case is detachable and easy to replace.
  • [Integrated Temperature Sensor]: The natural gas leak tester can also be used as temperature sensor, greatly expands the testing applications, but also let you not worry the temperature sensor consume too much space.
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#7
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Gas Leak Detector, Portable Handheld Natural Gas Analyzer PPM Meter High Low Sensitivity Adjustable with LCD Display Locates Combustible Gas, LNG, Methane, Butane Gas HT61

Brand: intendvision
$39.99
⭐ 4.1
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    Portable Gas Leak DetectorThis portable gas leak detector can detect a large number of flammable gases, like methane, natural gas, propane, butane, ethane, coal gas, gas oil, gasoline, toluene, sewer gas, alcohol, ketones more. As the concentration goes up, the audible alarm beep more frequently and the scale add up. Check appliances and piping in your house to pinpoint the precise source of a potential gas leak with the practical mini gas detector.
  • High & Low Sensitivity AdjustableHigh precision gas sensor for accurate and reliable gas leak detection, fast response time less than 5 seconds. High and low sensitivity are switchable for different scenarios. Set high sensitivity to find small gas leaks. Set low sensitivity to find larger explosive gas leaks. This handheld gas leak detector allow users with the ability to quickly and easily detect combustible gas leaks in most hard-to-reach places around appliances.
  • Visual & Audible AlarmThis gas analyzer pen will send out a visual and audible alarm if any combustible gas is detected. Alarms continuously with 85dB tone and LCD light turns red when detecting gas leak. LCD display with green backlight ensures clear visibility even in dim light. It has a low-battery indicator (batteries not included). Power-save modes, auto power off after about 10 minutes if there are no operation and measurement signal.
  • Handy Gas Leak Detector & Easy To UsePortable pen type design, weighing only 1.69 ounces, compact and lightweight, easy to carry and operate. Has an easy-to-understand interface with its on/off and high low sensitivity buttons, customers can operate the device with one hand. Without complicated instructions, extremely simple to use. Notes: There is only the detecting parameters for methane. For the detection of other combustible gases, the parameters are only for reference.
  • Wide Application & Take this handheld detector in the area where you think there might be a leak and wait for the device to display the current gas levels. The combustible propane detector widely applied with combustible gases, mists and residues, for the detection of flammable gases leaks, such as gas pipelines, propane tank stations, cabin leaks, exhaust gas and fuel leaks. Intendvision offers 36-Month and friendly customer service.
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#8
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TOPTES PT199 Gas Leak Detector, Natural Detector with Audible & Visual Alarm, Portable Sniffer to Locate Combustible Sources Like Methane, Propane for Home(Includes Battery x2)-Orange

Brand: TOPTES
$50.59
⭐ 4.4
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    Combustible Gas Leak DetectorThe TOPTES PT199 is suitable for LPG, methane, ethane, propane, butane, natural gas, coal gas, gas fuel, sewer gas, liquefied natural gas, etc., and it will exactly pinpoint a leak, reducing the risk of gas explosion and keeping your family and property safe
  • Visual & Audio Gas AlarmThe gas detector employs both visual alarm and audible alarm as fast as 0.5 seconds of detection. When the bar graph increases and the detector beeps, you k gas has been detected. The alarm increases with the amount of gas, and the LCD screen will turn red when the gas concentration is high
  • Batteries Included & Easy to UseThe TOPTES PT199 comes with 2x AAA Alkaline Batteries, so you will be able to set the detector up and have it ready as soon as you receive it. The system warm-up time is about 30 seconds. The low battery indicator will engage when battery voltage is below 2.4V. Automatic power off after 5 minutes without operation or gas detection
  • Compact DesignPocket-sized with a pen hook that allows you to carry it in your shirt pocket. The non-slip texture and material make it easy to hold. With included storage bag, the natural gas detector is also easy to store. It is a great tool for RV-ers, DIY-ers, homeowners with gas appliances, and so on. Saves you from paying hundreds of dollars in diagnostics or wasting gas in an undetected leak
  • What You Get1x PT199 Gas Leak Detector, 1x Storage Bag, 2x AAA Batteries, 1x User Manual. Combined with 's excellent delivery service, we provide a 36-Month after- service and technical support. Please feel free to contact us if you have any questions or concerns
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#9
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Natural Gas Detector, Gas Leak Detector with 11-Inch Gooseneck, Locating The Source of Propane, Natural Gas, Methane, LPG and Combustible Gas Leak for Home and RV

Brand: intendvision
$59.99
⭐ 4.7
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    Effective Gas Leak DetectorThis natural gas leak detector is suitable for LPG, benzene, methane, ethane, propane, butane, natural gas, coal gas, liquefied natural gas, and more in tight spaces. Allow 30 seconds for warm-up before use
  • Flexible ProbeThe 11-inch gooseneck allows easy access to hard-to-reach areas like pipelines, storage tanks, gas fireplaces, and basements, ideal for both indoor and outdoor leak detection
  • Visual and Audible AlarmThe gas detector employs both visual alarm and audible alarm as fast as 2 seconds of detection. With 12 colored bars and sound alarm that increase with gas concentration. Detection range: 50-10,000 ppm (Methane). Detection distance: 1-5cm
  • User-Friendly FunctionsEnable or disable Auto Power-Off with the APO button to save power after 10 minutes of inactivity. The Mute button silences the alarm, and the non-slip, wear-resistant design ensures a secure, comfortable grip for easy handling
  • What You Get1Gas Leak Detector, 3AAA Batteries, 1Storage Bag, and 1User Manual (English)
  • High & Low Sensitivity AdjustableHigh and low sensitivity are switchable for different scenarios. Low sensitivity detects 500-10,000ppm. High detects 50-500ppm. Set high sensitivity to find small gas leaks, set low sensitivity to find larger explosive gas leaks
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#10
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Gas Leak Detector Portable Combustible Gas Detector Gas Analyzer Flammable Natural Gas Acetone Propane Benzene Ethanol Gasoline Methane Tester 9999 PPM 20% LEL with LCD Color Display

Brand: intendvision
$99.99
⭐ 4.6
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    Portable Gas Leak DetectorThis portable gas leak detector can detect a large number of flammable gases, like Acetone, Acetylene, Alcohol, Ammonia, Benzene, Butane, Ethanol, Ethylene, Oxide, Gasoline, Hexane, Hydrogen, Methane, Naphtha, Natural Gas, Paint Thinners, Propane, Solvents and more. You can use it in your house or your RV. Check appliances and piping in your house to pinpoint the precise source of a potential gas leak with this practical gas detector.
  • Super Sensitive & Quick ResponseHigh precision gas sensor for accurate and reliable gas leak detection, fast response time less than 2 seconds. High and low sensitivity are switchable for different scenarios. Set high sensitivity to find small gas leaks. Set low sensitivity to find larger explosive gas leaks. This handheld gas leak detector allow users with the ability to quickly and easily detect combustible gas leaks in most hard-to-reach places around appliances.
  • Audible & Visual AlarmWith the sound and bargraph two alarm ways, you can get timely feedback on the results. Press MUTE key to turn on/off audible alarm in case you need. With high definition LCD display screen, which can show the data more clearly, give you a better using experience. Power-save modes, auto power off after about 10 minutes if there are no operation and measurement signal. Range (Methane Calibration): 0-9999ppm or 00.00-20.00%LEL.
  • Simple To UseHas an easy-to-understand interface, without complicated instructions, extremely simple to use. This portable gas detector powered by 3 AAA batteries (Not included). With a maximum length of 17-Inch gooseneck sensor probe, you will be reaching anywhere even in hard-to-reach areas. Quickly and accurately pinpoint potential combustible gases leaked in your RV, trailer, camper, kitchen, basement, gas stove, water heater and other household devices at home.
  • Wide ApplicationTake this handheld gas leak detector in the area where you think there might be a leak and wait for the device to display the current gas levels. This combustible propane detector widely applied with combustible gases, for the detection of flammable gases leaks, such as gas pipelines, propane tank stations, cabin leaks, exhaust gas and fuel leaks.
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