10 Best Natural Gas Detector of September 2025

• Protects you and your family from two deadly threats: Carbon monoxide and explosive gas.
• Sounder alarm – The KN-COEG-3 offers a loud 85-decibel pulsing alarm that will sound to alert you to a potential problem.
• Digital display - Displays the level of carbon monoxide the unit is sensing.
• Peak level memory - Recalls the highest CO concentration detected
• Test/reset button - Tests unit’s electronic circuitry operation and allows you to immediately silence the alarm
• Two alarms in one detects carbon monoxide and explosive gas
• Three convenient mounting options
• Digital display and peak level button displays the peak CO level recorded by the alarm since it was last reset
• Battery backup 9 volt battery included
• Kidde’s carbon monoxide alarms meet the requirements of Underwriters Laboratories (UL), an independent facility that tests products for compliance with widely-accepted safety standards

Kidde

• 【Detect Multiple Gases】- Home gas detector suitable for detecting LPG(Methane), natural gas, coal gas, gas fuel, artificial gas, liquefied petroleum gas, liquefied natural gas etc.
• 【LED Digital Display & Sound Warning】- Gas Detector offers Voice Notification and a digital readout of the GAS concentration.When gas leak concentration reaches presetting level, the alarm provides a visual and audible signal. 85dB alarm sound, reduce the risk of gas explosion and protect your family's life and property safety.
• 【Easy to Install】- Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.
• 【Widely Applyed 】-This product can be used as independent family alarm equipment, and also can be used as front detector of alarm system. Widely Used for Restaurant, Hospital,Hotel, Oil Factory,Garage, Gas Station etc.
• 【Precautions】- The system warm-up time is about 2-3 minutes. During this time period, the gas test will not work. You need to wait for the display to show 0 (the system enters the working state) before it can be tested normally.Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.

HSTMYFS

• A GAS DETECTOR FOR MOST EVERY COMBUSTIBLE GAS: Locates the source of explosive gas leaks including natural gas or methane, propane, fuel including gasoline or kerosene, sewer gas, alcohol, butane, coal gas, ethane, toluene, and other flammable gases.
• PORTABLE & FLEXIBLE GAS LEAK DETECTOR: Powered by 3 AAA batteries, this portable gas detector sniffer can be taken anywhere to find gas leaks indoors or outdoors. Bend 12-inch length sensor neck in any direction along gas pipes or fuel lines in confined spaces to find gas leaks.
• VISUAL / AUDIO GAS INDICATORS: 6 LEDs with 85dB tonal alarm notify users of gas leaks and relative concentrations of natural gas & propane.
• ADJUSTABLE SENSITIVITY: Increase sensitivity dial to find small gas leaks. Decrease sensitivity to find larger explosive gas leaks while filtering out false alarms from background gas levels. If alarm sounds when turning on detector, sensitivity needs to be decreased toward (-).
• LIFETIME USA WARRANTY + ORIGINAL DESIGN: As the only US retailer of this item, we stand fully behind this product and will replace it if it ever breaks! We have a Midwest-based chemist on staff to answer any technical questions. Also included is a 20+ page eBook on Gas and Air Quality Hazards.

EG Air

• A 12-inch fl flexible probe allows location and detection of leaks in hard-to-reach and confined spaces
• Six red LED's (visual) and 85dB audible alerts that increase with Gas concentration
• Excellent sensor,high sensitivity,long lifetime. Powered by: 3 x AAA 1.5V batteries (not included)
• Sense low amounts of butane gas, methane (natural gas), and propane gas
• Detection range: 50 to 10, 000 ppm

TECHAMOR

• Detect Multiple Gases: Home natural gas detector suitable for detecting LPG, natural gas, coal gas, gas fuel, artificial gas, liquefied petroleum gas, liquefied natural gas etc.
• Play Voice & Sound Alarm: Gas Detector offers Voice Notification and a digital readout of the GAS concentration.When gas leak concentration reaches presetting level, the alarm provides a visual and audible signal. 85dB alarm sound, reduce the risk of gas explosion and protect your family's life and property safety
• Widely Applied: This product can be used as independent family alarm equipment, and also can be used as front detector of alarm system. Widely Used for Restaurant, Hospital,Hotel, Oil Factory,Garage, Gas Station etc.
• Easy-to-install: Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.
• Notice: I would like to remind you that after connecting the gas alarm to the power supply, wait 3-5 minutes for gas detection，the product needs a warm-up process

STKYGOOD

• Detection range: Approximately 50 to 10,000 ppm* (*based on Methane)
• Two levels of sensitivity: High (Approximately 50 to 1000 ppm) and Low (Approximately 1,000 to 10,000 ppm)
• Five red LED's (visual) and 85dB audible alerts that increase with gas concentration
• Automatic zero-point calibration at power-up (lights will flash during self-calibration; this does not indicate the presence of gas)
• 18-Inch flexible gooseneck expands sensor's reach; clips onto meter for storage

Klein Tools

• Portable natural gas detector for detecting all combustible gas leak, LPG, LNG, fuel, hydrocarbons (methane, natural gas, gas, ethane, propane, benzene, Acetylene, propane, Pentane, hexane, gas oil, toluene), halogenated hydrocarbons(methylchloride, methylene chloride, three chloride, vinyl chloride), alcohols(methanol, ethanol), sewer gas etc. You can use it in your house or your RV.
• Come with 3xAA batteries, ready to use! Compact size, light weight, easy to carry and operate. Long flexible stainless probe reaches all areas.
• Audible semiconductor probe and auto fast warm-up.
• Instant response, pinpoint leak position, whether in your home or in your RV. Audio & visible leakage alarm indication and adjustable sensitivity. Minimum 50 PPM (methane)
• Video tutorial for your preparation. Please scroll down to "Related Video Shorts" on this page to find out. Also, you can download the latest version of Instruction Manual in the section of Technical Specification, on the same page as product description.

Pangaea

• ✅ PROTECT YOUR FAMILY! - Be worry free and know you did everything to keep your family safe from accidents caused by dangerous gas leaks from your stove, furnace, water heater, washing machine, fireplace, kitchen, garage or grill.
• ✅ SAVE YOUR TIME- Plug and Play! Don't waste your precious, limited free time with complex installations and never change a battery! Just plug in and get on with your day!
• ✅ STAY STYLISH - No tacky cord! Don't drill holes in your wall! This sleek and modern white natural gas alarm is wireless and will complement the style of your home or camper without detracting from your interior design.
• ✅ GET MAXIMUM SAFETY - The All-In-One GasKnight natural gas leak detector detects the main deadly gases: 1. Natural gas (Methane, butane, ethane, LNG, etc) and 2. Propane (LPG or liquefied petroleum gas).
• ✅ HAPPINESS GUARANTEED - In plain English, if you don't like your GasKnight, we'll refund your money. We are an American company. FREE 2-YEAR WARRANTY AVAILABLE. ORDER YOURS TODAY!

GasKnight

• Easy one hand operation
• Simple adjustable TiCo rate
• Long 18 inch gooseneck
• Tip light in sensor cover illuminates the area of the leak, sensor provides accurate detection

UEi Test Instruments

• HIGH SENSITIVE– 1 PPM accuracy, 0-9999 PPM measuring range. This gas leak tester can detect : natural gas( methane), propane, ethane, gas oil, toluene, propylene, butane, LPG, ethanol, alcohols( methanol, ethanol) and other combustible gas (not include smoke and CO/Carbon Monoxide)
• DIGITAL DISPLAY – It displays real-time gas concentration, which not only gives you the answer of leaking or not, but also tells you how much the leakage is, that could help you to find out the leaking position more easily
• AUDIBLE VISUAL Gas Leak Monitor – LED light indicator will flash and an sound will shriek when excess gas is tested
• FLEXIBLE PROBE – With 12 inches flexible goose neck, probe is easy to be adjusted to anywhere that need to be checked, even in narrow and confined space
• Widely use at home kitchen, water heater, gas pipeline, propane tank stations, cabin leaks, exhaust gas and fuel leaks, plumbing check, sewage treatment, municipal, electricity, mining, tunnel construction, brewing and other places to testt flammable gas

DEEPLITE