Best Gas Leak Detectors To Buy [An Honest Review]

There aren’t many things more important in your home than a reliable gas leak detector. Detecting a gas leak early can truly mean the difference between life and death. For your own safety, as well as that of your family, you should always make sure that your home is equipped with the best gas leak detector available.

The only problem with finding the best possible option is that most of us don’t know much about gas leak detectors. This is not the type of thing you pick up on a whim at the mall. A gas leak detector is something that requires a bit of knowledge and a deliberate decision.

If you want to make sure that your home is well-protected, but you can’t see yourself knowing how to pick from amongst the best gas leak detectors, you’ve come to the right place. We are here to guide you through the entire process of picking your gas leak future detector. Keep reading & rest easy at night once your home is defended from gas leaks!

What is a Gas Leak Detector?

A gas leak detector tool is a literal lifesaver. It’s a tool capable of detecting several types of gases that may be leaking into your home. This helps prevent serious incidents that may occur during, or in the aftermath of, a leak.

Depending on the type of gas leak detector you pick, you may get one that shuts down certain processes within your home and thus makes the environment safer. Otherwise, you’ll probably get one that simply sounds an alarm & leaves you and your family plenty of time to get out if a gas leak is detected.

Some people claim that a gas leak detector is not needed because gas can be detected through smell, but that is simply not true. Not all gases are detectable through smell. In those cases, reliable gas leak detectors might be the key difference between life and death when used properly.

It doesn’t matter whether you’re planning to use a gas leak detector for work purposes or for your home. It’s a tool that should be found in any building where gas can be found. Fortunately, there are ways to pick the best gas leak detector for you without having any prior knowledge on the subject.

Gas Detector Types

There are two main types of gas detectors: fixed gas detectors and portable gas detectors. Your choice will affect the usage and accessibility of the gas detector, so make sure you pick one that best suits your circumstances.

  • Portable gas detectors are not attached to any particular room in the house or the office. Instead, they are clipped to the belt of working personnel or any other person that wants to be alerted about high levels of gas around them. These gas detectors normally alert via flashing lights or alarms.
  • Fixed gas detectors are the more common ones found in homes and other spaces. They are fixed to the wall and they will alert you of rising gas levels.

What Are the Best Gas Leak Detectors?

We’ve given you a solid introduction to the subject of gas leak detectors. Now, it’s time to make shopping even easier for you & share our recommendations! Keep reading to learn all about the best gas leak detectors in 2020.

Kidde AC Plug-in Carbon Monoxide and Explosive Gas Detector

If you are after the absolute best in carbon monoxide and explosive detectors, this is most likely it. This Kidde tool is a combustible gas leak detector alarm that protects you from carbon monoxide and explosive gas, keeping your household safe from gas leaks.

The alarm included in this detector is loud (85 decibels) and will be heard throughout the house. Kidde is equipped with a digital display that will always keep you informed about carbon monoxide levels in the surroundings.

It’s a 2-in-1 tool with two different alarms that depend on the type of gas it detects. It’s reliable, sensitive, and easily mounted — it comes with three handy mounting options.


  • Reliable protection from carbon monoxide and explosive gas
  • Loud alarm
  • Digital display
  • Easy to mount
  • High parts per million ratio


  • No manual included in the box

EG Propane/Natural Gas Detector

This is a versatile natural gas leak detector that will alert you of high levels of various types of gas. It defends your home from propane, natural gas, combustible explosive gas, methane, butane, LPG, LNG, and more.

If your home is in danger and you’re in need of the best natural gas leak detectors, this tool will sound a loud, 80-decibel alarm that will alert you to come and check it out. On its digital display, you will easily see the current gas levels.

EG offers very precise measurements that are easy to follow even if you’re not knowledgeable on the subject matter. It displays a percentage-based level of danger that ranges between 0-20%. At 5% of gas, such as natural gas, an audible siren and a speaking alarm begin to sound.


  • Wide coverage of different kinds of gas
  • High precision
  • Easy to follow display
  • Loud siren and speaking alarm


  • Plugs directly into the wall, so it doesn’t work without electricity

Portable Propane and Natural Gas Leak Detector

If you need one of the greatest gas leak detectors, this model is undoubtedly one of the best. It protects you from almost every combustible gas possible, including natural gas, methane, propane, fuel (gasoline & kerosene), sewer gas, butane, alcohol, coal gas, toluene, ethane, and more.

It’s powered by 3 AAA batteries, so it’s cheap to run. It has a long battery life and is known to be reliable. The sensor neck attached to the body of the detector measures at 12 inch in any direction, allowing you to bring it close to pipes or fuel lines.

It comes with a visual and audio indicator comprised of 6 powerful LED lights and an 85-dB sound alarm.


  • Portable & can be taken anywhere
  • The sensor neck is long and can reach anywhere
  • High coverage of protection
  • Battery-powered


  • It’s not the cheapest model on the market
  • Some models have a longer flexible probe, such as an 18 inch model

Natural Gas Detector Alarm

A cheaper gas detector alarm is still capable of protecting your entire family. If you’re on a budget, this product by STKYGOOD is a decent alternative to more expensive options.

It can detect a high concentration of gas of many kinds, such as natural gas, LPG, coal gas, gas fuel, artificial gas, liquefied natural gas, liquefied petroleum gas, and more.

When the gas leak concentration surpasses the level the tool deems to be safe, a loud alarm will sound. With 85dB of noise, you never have to worry about missing the cue that something is wrong. It also has a voice alarm and a handy display.


  • Affordable pricing
  • It defends you from many different types of gas
  • It can be used in many places, such as homes, restaurants, offices, etc.
  • Easily installed


  • The build is flimsier than in more expensive models

First Alert Plug-In Battery Backup CO Alarm

Many people prefer gas leak detectors that plug into the wall. However, what will you do if the power goes out? This is why it’s good to have a backup CO alarm such as this one. First Alert is battery-powered and it protects you in the event of a power outage.

This alarm will function with any standard outlet, but it can be switched to battery mode when needed. It’s designed to detect carbon monoxide levels in your home regardless of its placement in the room. It also has a LED display that shows you current CO levels.

The alarm is just as loud as in more expensive tools, measuring at 85 decibels. It’s recommended that you pick up more than just one of these and place them throughout your home for maximum detection.


  • Backup solution for power cuts
  • Also works when plugged into a socket
  • Loud alarm


  • Only detects carbon monoxide (CO)

UEi Test Instruments Combustible Gas Leak Detector

Preview Product Rating Price
UEi Test Instruments CD100A Combustible Gas Leak Detector UEi Test Instruments CD100A Combustible Gas Leak Detector 661 Reviews $110.55

For your handheld gas leak detector needs, we can also recommend this model by UEi Test Instruments. It’s easy to use & precise in its measurements.

This UEi Test Instruments combustible gas leak detector will detect combustible gases. It has a long, 18-inch flexible probe neck that can bend in each and every direction. It’s often found in the arsenal of HVAC technicians, plumbers, firefighters, and more.

It has a minimum detection of 50 PPM (parts per million) methane and propane. The audio is adjustable, so you can turn it up or down depending on what you prefer.


  • Portable & light
  • Very easy to use
  • Long & highly sensitive sensor neck


  • It’s a little pricey

Corentium Home Radon Detector

If you need to keep yourself protected from radon, this is the right tool for you. This Corentium home radon detector is a digital & battery-operated tool that keeps your home safe and alerts you of the presence of gas.

You don’t need an outlet, as this tool runs entirely on batteries. It shows you long and short-term readings on its easily readable screen.

It’s powered by three AAA batteries and it’s known for its long battery life, so you can trust it to protect your home for years to come with its highly sensitive audio and visual cues.


  • High-end product
  • Battery operated
  • Fantastic protection from radon


  • It only detects radon

Portable Propane, Methane & Natural Gas Leak Detector

For our last recommendation, please check out this portable, high-sensitivity, & versatile gas detector. You can use it to detect all combustible gas leaks, as well as gases like LPG, LNG, hydrocarbons (natural gas, propane gas, ethane, methane propane, propane-butane, benzene, acetylene, pentane, propane, chloride, and more), sewer gas, and more.

You can use it on the go, but you can also install it in your home or in an RV. Keep in mind that the coverage area is not as large as it would be in a fixed gas leak detector. However, it has a long flexible probe that will help in hard to reach areas.

This tool runs on three AA batteries & comes with them included, so it’s ready to use right out of the box! It provides audio and visual cues, including an audible alarm.


  • It can detect a leak of many kinds of gas
  • Battery-powered
  • Comes with batteries & everything you need right in the box


  • It might be overly sensitive for some people

Things To Consider When Buying a Gas Leak Detector

Buying a gas leak detector is no easy feat. Most of us have little to no knowledge on this subject, so how can we make the best possible decision? Fortunately, the things you need to know can be summarized in just a few short points.

To make sure you’re making an informed decision that you’ll be happy with, keep the following in mind when you shop for a gas leak detector.

Gas detection properties

The most important question to ask yourself when shopping for the best gas leak detector is: what gas do you want the tool to be able to detect? Some models are capable of detecting multiple gases, but not all are. If you know that there’s a specific kind of gas that you want to keep track of, shop for a detector that will take care of that for you.

Intended use

Another important matter is where you’re going to use the detector. If you want to install one in your home, office, or workshop, you’re better off buying a fixed gas detector. On the other hand, if you want one to keep you safe while on the move, a portable detector is the way to go.


Not all gas detectors are easy to use. Some of them are better tailored to professionals, while other models will suit pretty much everyone. If you’re new to owning or using a gas detector, it’s best that you pick a model suited for beginners.

The Types Of Gas You Need To Be Careful Of

As mentioned above, not every gas detector will work with every type of gas. Similarly, you may not be aware of the types of gas that are the most threatening. This makes shopping even more difficult.

Obviously, you don’t want any gas leaks at all — but finding a detector capable of tracking every single type may be hard. That’s why it’s good to focus on one or all of the following gases, as they are the most dangerous.

Toxic gas

Toxic gases, such as carbon monoxide, are very dangerous both in the short & long run. If you are exposed to high levels of colorless and odorless carbon monoxide (CO), you’re putting yourself in a highly risky situation that could even prove to be fatal. This type of gas leak can often occur in a garage due to a vehicle left running, but it can also be found in other parts of the house due to leaking appliances.

These toxic gases are lighter than air. This means that your gas leak detector needs to be placed high in the room in order to detect all the potential leaks. The gas leak detector needs to be capable of identifying metal and electrochemical oxide semiconductor technologies.

Combustible gas

Combustible gases can cause catastrophic disasters when not detected early enough. Combustible gas is most commonly a natural gas that is comprised chiefly of methane and propane. This type of gas has an additive called mercaptan. Mercaptan has an awful smell, a lot like rotten eggs, so you can sometimes detect such a gas leak yourself.

However, it’s always a risk if you’re not protected. You may not be in the room when the leak occurs, and thus, you will be unable to spot it. That’s why a gas leak detector is the way to go.


Radon is not going to cause any explosions or fires, but it’s highly toxic and really bad for your health. It’s radioactive and it’s one of the main causes of lung cancer, so any and all leaks should be stopped as soon as possible.

The above represents the most dangerous gases that we may be exposed to in our homes or at work. If you know for a fact that any of these are present in your home, you need to make sure that the gas detector of your choice will be able to spot any potential leaks.


To make sure you walk away with all the knowledge you could possibly need, we’ve also prepared this handy FAQ. Check out below for some more info on gas leak detectors.

Is there an alarm for gas leaks?

That’s one of the main reasons why you want to buy a tool to detect gas. Most of them are equipped with a loud alarm that will alert you whenever the levels of gas rise below what is safe for you and your home.

Where do you put a gas leak detector?

This depends on the type of gas the detector is used to track. Some detectors are portable, which means that you typically clip them to your belt and carry them around. A fixed gas detector will be placed on the wall, either near the ceiling or near the floor, depending on the source.

How do you detect a natural gas leak?

Other than using a gas leak detector, there are several ways you can follow in order to detect a natural gas leak. Some of them include:

  • Smell. You can often smell natural gas, propane gas, and other gases. If there’s an unusual smell in your home (people often say it’s similar to rotten eggs or garbage), you need to quickly investigate.
  • Sound. If you can hear a whistling or blowing kind of noise, it might be a gas leak.
  • Discoloration. Your walls or plants may be discolored, or in the case of plants, dead, if a gas leak occurs.


Better safe than sorry — that’s a popular saying that many people can relate to. When it comes to the safety of your loved ones and your home, there’s no price too high to pay in order to ensure everyone and everything is secure.

Gas leaks can have terrible consequences, but fortunately, a gas leak detector is a reliable tool that keeps you safe no matter what. Pick the right one and get it today — it’ll help you sleep soundly for many nights to come.

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