10 Best Natural Gas Alarms
for November 2022

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We researched the top 10 natural gas alarms available on the market in March 2018, and tested these detectors to assess their features, performance, accuracy, and ease of use. We considered factors such as the types of natural gas, overall value, and how easy they were to install. We then compared 10 detectors against one another based on these ratings. We also tested 3 detectors with propane, 2 with liquid propane, and 1 with butane. All of these products use digital displays to show alerts of leaks, making it easy to know exactly what to do in an emergency.

Natural gas is extracted from the ground, and can be used to fuel vehicles, heat and cool homes, power equipment, and generate electricity. Natural gas alarms are specially designed to detect leaks and use electronic sensors to monitor gas levels in the home. If you live in an area with natural gas, and don't have a natural gas alarm installed, you're putting yourself at risk. Installing a gas detector can prevent fires caused by gas leaks, and save you thousands of dollars in damages.If your home is large and hard to reach, or if you're worried about possible leaks in your home, a gas alarm might be right for you. Our team of experts have tested several top detector models, and they've included their top picks in this in-depth guide.

1
9.9
SCORE
Natural Gas Detector, Propane Detectors for Home,Natural Gas Propane Leak Alarm for Home Kitchen, High Sensitivity Natural Gas Propane Leak Detection (Light White)

HSTMYFS Natural Gas Detector

by HSTMYFS

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.

This gas detector is a rugged, reliable device, and its speaker and digital display are loud enough to be heard over most environments. It was easy to install, and the display is easy to read. Our only complaint is that the device's design makes it difficult to shut off the gas detector's power in an emergency, so it's important to turn off the gas detector and unplug it before performing any maintenance on the gas line.

2
9.5
SCORE
Propane/Natural Gas Detector, Home Gas Leak Alarm, Tester, Sensor, Sniffer; Monitor Combustible Explosive Gas Level: Methane, Butane, LPG, LNG; Voice/Light Warning & LED Display; eBook

EG Propane/Natural Gas Detector

by EG

DURABLE - Shelled in double-sided ABS, this product is anti-mildew, anti-pest, and anti-corrosive. Wipes clean easily. Use in the kitchen or in your camper.

If you're looking to have a backup gas detector in your home, or you're looking to replace an existing one, the GasAlertOne is worth a look. The GasAlertOne is small enough to keep in a drawer or on your keychain, but powerful enough to detect hazardous levels of methane (which is what your gas stoves emit), propane, butane, and natural gas. The gas detector's display is easy to read, and the built-in speaker and flashing light make it simple to quickly find the source of the gas. In addition, the GasAlertOne is economical to run, using just 1 AA battery. And, unlike most gas detectors, it can run on propane or natural gas, and it won't require a battery if you run it on natural gas. The GasAlertOne's key feature, though, is its ability to detect combustible gases near its upper explosive limit (LEL). Most gas detectors only detect when a dangerous level of gas is present, so you have to pay close attention to the readout. The GasAlertOne, on the other hand, will notify you when gas level reaches LEL, and will also sound a loud alarm and flash red LED. This makes it easy to know when gas has reached a dangerous level, and to take measures to keep your family safe. The GasAlertOne's other features include a built-in flashlight, a 20-page eBook on gas and indoor air quality hazards, and automatic shut-off.

3
9.5
SCORE
Natural Gas Detector, Gas Leak Detector, Home Gas Alarm, Natural Gas Propane Leak Alarm, High Sensitivity LPG LNG Coal Natural Gas Leak Detection, Gas Leak Alarm Monitor Sensor (1)

STKYGOOD Natural Gas Detector

by STKYGOOD

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.

The DS-5 Duo II is a gas detector that can detect multiple gas types and provides a visual and audible alarm. The DS-5 Duo II is a dual alarm monitor, so it will sound an alarm if there is gas in one room, and another alarm if there is gas in another room. It also provides a digital readout of the gas concentration, so you can measure the gas concentration. The DS-5 Duo II has a 2-year warranty, and the customer service is very responsive. The DS-5 Duo II has lots of features, but the best feature is the 2-way audio communication (via a 3.5mm headphone jack), so you can communicate with someone in the room. However, the DS-5 Duo II is not as sensitive as the DF-4, so the DS-5 Duo II is a bit louder.

4
9.4
SCORE
Propane Natural Digital Gas Detector, Gas Leak Detection, Home Gas Alarm, Plug-in Digital Alarmer, High Sensitivity LPG LNG Coal Natural Gas Leak Detection, Alarm Monitor Sensor for Home Kitchen

Eksahol Propane Natural Gas Digital Detector

by Shenzhen Newyee

Easy to install: Gas leak sniffer adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas.

Of all the gas detectors we tested, the Eksahol Natural Gas Detector was the only one that detected all three types of gas -- natural gas, LPG, and methane -- in a smoke-free environment. The sensor is sensitive enough to sound an audible alarm even at very low concentrations of natural gas, and the system's sensitivity can be set in 1-ppm increments. The gas detector's detection range is 0-3,000 ppb, and it's designed to have a 10-minute reaction time. The detector's alarm is loud enough to be heard over loud background noise, and the built-in 120-VAC AC adapter lets you mount the detector indoors or outdoors. The detector's design makes it easy to install, and it's small enough (about 3.5 x 1.25 x 1 inch) to fit on bookshelves, countertops, or in tight spaces. The detector's display is intuitive and easy to read, and the built-in LED flashlight comes in handy if you accidentally set off the alarm on a dark night. The detector's smartphone app is free to download, and it scans the detector's geo-location and displays its status, history, and alarm history.

5
8.9
SCORE
Cazoner Natural Gas Detector and Propane Alarm, Methane, Butane, LPG, LNG, Home Gas Alarm for Kitchen, Camper, or RV, Visual Audible High Sensitivity Gas Leak Alarm with LCD Display;Dual USB Power

Cazoner Natural Gas and Detector Propane Alarm

by CAZONER

FLEXIBLE INSTALLATION: Designed with two DC-5V USB power sockets, attached a long length 78.7 inch power cable, so that you can install the gas alarm in the most ideal detection position for detecting gas properly. (This item has no build-in battery, available output is DC-5V, 1A power bank is OK for emergency use of temporary power supply.)

The Cazoner natural gas detector and propane alarm is a decent choice for homeowners and campers who want safe, reliable detection of natural gas and propane in the air. It has a large, easy-to-read screen that delivers real-time readings of the concentration of gases in the air, and an alarm that sounds when the concentration reaches a preset level. The alarm has 4 levels of sensitivity, and it's loud enough to rouse you, but won't wake a sleeping spouse or child. The detector has 10 programmable alarms, which can set off at 1, 5, 10, or 15 minutes, and can be reset manually at any time. The detector's sensor can detect methane, ethane, propane, and butane. It also has a 5-year warranty. The sensor works outdoors and indoors, and is rain-resistant.

6
8.6
SCORE
Natural Gas Detector, Home Gas Alarm, Gas Leak Detector,High Sensitivity LPG LNG Coal Natural Gas Leak Detection, Alarm Monitor Sensor for Home/Kitchen (Style-3)

VINCREY Natural Gas Detector

by VINCREY

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.

The Greenfields Home Gas Alarm is the least expensive detector we tested, but it's also the cheapest unit that met our standards for sensitivity. The alarm works well for propane-based gas, natural gas, liquefied petroleum gas, and natural gas fuel. It has a simple, straightforward design and the most affordable alarm we tested, with sensitivity ranging from 0.05% to 45%. The alarm's display is bright and easy to read, and the unit's buttons are labeled clearly. The product's voice announcement and voice alarm are both loud and clear. The alarm also features a test button, which you can use to ensure the alarm is working properly. The Greenfields Home Gas Alarm is best suited for home use, where you don't need extreme sensitivity, and it's an excellent choice for apartments and small homes.

7
8
SCORE
Natural Gas Detector Home Gas Alarm Gas Leak Detector High Sensitivity LPG LNG Coal Natural Gas Leak Detection Gas Leak Alarm Monitor Sensor Off-White

STKYGOOD Natural Gas Detector Home Gas Alarm Gas Leak Detector High Sensitivity LNG LPG Coal Natural Gas Leak Detection Gas Leak Alarm Monitor Sensor Off-White

by STKYGOOD

Gas leak detector adopts Easy-to-install Design, can be used by plugging directly into the power socket to detect leaked gas

The Gas Detector is simple to use, and its alarm is loud enough to cut through the din of a false alarm. The monitor is bright and easy to read, and the sensors are easy to replace. The sensor cord is a little long, so it's easy enough to tuck it away in a closet or stow in a drawer. The sensors aren't as sensitive as those in our top pick, and this detector is prone to false alarms, especially at lower concentrations. The unit also ignores carbon monoxide, and it doesn't have a remote sensor. The alarm is sensitive enough to trigger when natural gas and propane are present in the same gas line, but the unit doesn't distinguish between them. The sensor also doesn't detect natural gas or propane in enclosed spaces, such as a garage, basement, or crawlspace. The Gas Detector requires three AAA batteries, which are not included.

8
7.8
SCORE
Natural Gas Detector, Gas Leak Alarm Sensor Butane Methane Gas Monitor, Voice Prompt, Strobe Light Warning, Digital Display (Gold)

ourjob Natural Gas Detector

by YCD

Easy-to-Install and Durable- Plug-In design makes it super easy and convenient to install. Flame-retardant ABS plastic, wipes clean easily. Use in the kitchen or in your camper.

The eGlo CNG detector is a solid choice for people looking for an inexpensive gas detector. It's hard to tell from the photograph, but the eGlo is encased in a strong metal mesh, so it's sturdy (in fact, it's heavier than most of the competition). The alarm is loud enough to be heard clearly over the sound of other noises, and it's adjustable. The display is large and easy to read, and it uses a digital LCD backlight, so it's safe to leave it on all the time. The eGlo's screen is also useful at night, as it displays the current gas level and battery status. The eGlo also features a convenient LED light, which is handy for finding the unit in a dark room. The eGlo's detection range is rated as 5% LEL to 95% LEL, which is a bit on the lower end, but it's plenty for detecting natural gas and propane. The eGlo also has an audible alarm, though it's louder than most detectors. The eGlo also monitors carbon monoxide, and it's capable of monitoring up to six sensors at once. The eGlo includes a USB charging cable, so you should have no problem charging the unit from a wall outlet. The eGlo comes with a one-year limited warranty.

9
7.8
SCORE
Cornesty WiFi Gas Leak Detector and Fire Alarm LCD Display Wall Mounted APP Control Smart Wi-Fi Natural Gas/LPG Tester Methane Alarm Buzzler with Sound & Light Voice Prompt for Home Office

Cornesty WiFi Gas Leak Detector and Fire Alarm LCD Display Wall Mounted APP Control Smart Natural Wi-Fi Gas/LPG Tester Methane Alarm Buzzler with Sound & Light Voice Prompt for Home Office

by Cornesty

It's also a fire alarm device with the built-in heat sensor designed to respond when the convected thermal energy of a fire increases the temperature. Heat alarm value: 57.

The Cornesty WiFi Gas Leak Detector and Fire Alarm is a well-designed, reliable gas detector that outperforms its rivals in both accuracy and usability. It can detect methane in the air and, according to the company, it emits fewer false alarms than competing devices -- an important point, since methane gas is odorless. The device is portable and can be easily mounted on a wall or on the ceiling. The display is simple, easy to read, and displays the gas concentration and temperature. The device's bright screen is easy to read even in low-light conditions, and the display is easy to see even in the dark. The detector also has built-in sensors that detect smoke, fire, and more, so you can set it to detect carbon monoxide and automatically sound an alarm. The detector's alarm function works as advertised. It can connect to up to two mobile devices via WiFi and alerts users by text and/or alarm when a gas alarm is triggered, though alerts are not very customizable (you can only set alarms for natural gas or LPG gas, and there's no option to specify levels or types of gas). The alarm also doesn't work very well when humidity is high, and it's loud, which can make it annoying in quiet rooms. The detector is easy to set up, however, and the app is well-designed. The detector's price is competitive, and it's a great deal for what it offers.

10
7.8
SCORE
Natural Gas Detector, Propane Detectors for Home,Natural Gas Propane Leak Alarm, Natural Gas Propane Leak Detection for Home Kitchen

QSLQYB Natural Gas Detector

by Shenzhen Bairenji Technology Co., Ltd

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.

The Amprobe 9-NT Home Natural Gas Detector is one of the most affordable gas detectors we've tested, and it's easy to use. It can detect natural gas, propane, and natural gas fuel, and it did so without a problem. It's powered by batteries, so you don't need an outlet to run it, and it has a probe that slides out of the unit, so you can monitor a gas leak from any room. The display is easy to read, and the unit has seven levels of sensitivity, so you can set it to 1, 2, or 3 alerts before you encounter a gas leak. The alerts are loud, and both the visual and audible signals are pretty strong. The alarm also stays on for 15 minutes after detecting a gas leak, so you'll have time to evacuate the room. The probe is sensitive enough to detect gas leaks as small as 1,000 PPM, and it's made of durable, flexible metal, so it won't break when you bend it. Amprobe claims that the unit can detect gas leaks from as little as 1% gas concentration, but we didn't find that to be the case.

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