8 Best Gas Leaks Detectors in 2022 – Reviewed & Buying Guide

At home or in the company we all have appliances that emit various types of gas. To be sure not to take risks, it is necessary to have a detector that gives an alarm if the concentration of these gases exceeds a certain threshold.

The price you pay to choose a good gas detector is always a second parameter to consider. It is good to know what to expect from these devices and understand what performance they can offer to respond well to the needs of the place where they are installed.

This guide helps you compare the aspects that characterize the various models on the market to facilitate the identification of the ideal detector. Here we will be listing the top 8 best gas leaks detectors.

SaleRANK NO. 1
Y201 Propane and Natural Gas Leak Detector;...
  • MULTIPLE DETECTABLE GASES: Locates combustible & explosive gas leaks from methane / natural gas, propane, fuel, ethane, butane, alcohol, coal gas, gasoline, toluene, kerosene, sewer gas, and other flammable gases.
  • FLEXIBLE & PORTABLE GAS LEAK DETECTOR: Bend 12-inch length sensor neck in any direction along gas pipes & fuel lines or within confined spaces. Powered by 3 AAA batteries, this portable gas detector sniffer can be taken anywhere to find leaks outdoors or indoors.
  • VISUAL / AUDIO GAS INDICATORS: 6 LEDs with 85dB alarm notify user of presence and relative concentrations of natural gas & propane leaks.
SaleRANK NO. 2
Kidde Nighthawk Carbon Monoxide Detector &...
  • Easy to install CO and explosive gas alarm with three convenient mounting options including AC wall outlet, plugin six foot power cord, or table top
  • Carbon Monoxide (CO) alarms four quick beeps, followed by five seconds of silence, followed by four quick beeps. Displays CO concentration
  • Gas alarms one second of alarm on, one second of alarm off, repeating with “GAS” shown in display
SaleRANK NO. 3
ComStar Leak Bubbles Yellow HVAC & Gas Detector |...
  • Leak Bubbles Yellow is fastest acting leak detector in today's market
  • Environmentally safe, non-toxic, and non-corrosive
  • Detects leaks in natural gas, refrigeration gas, nitrogen, air and C02
SaleRANK NO. 4
Techamor Y201 Portable Methane Propane Combustible...
  • Detect Various Flammable Gases: Portable Natural gas sniffer and tester is used to locate exact gas leak for various combustible gas, such as methane, natural gas, propane, LPG, sewer gas, coal gas, gasoline, other flammable gases.
  • Detection Range: Approximately 50 to 10,000 ppm (Based on Methane), instant response once encounter leakage points.
  • Easy-to-Use Gas Leak Detector: Powered by 3 AAA batteries (Not included), 12 inch bendable gooseneck can locate and detect the gas leaks even in hard-to-reach areas at home & VR, kitchen and fireplace etc., refer to “How and Where to Use the Y201 Combustible Gas Detector” video.
Seesii Portable Gas Leak Detector, Handheld...
  • 【DETECTS MANY KINDS OF COMBUSTIBLE GASES】 Detects a large number of flammable gases, like methane, natural gas, propane, butane, ethane, coal gas, gas oil, gasoline, toluene, sewer gas,alcohol, ketones, carbon monoxide and more. Detect gas between 50 and 10,000 parts per million (ppm), can be used by homeowners, professionals, or real estate agents.
  • 【HIGH SENSITIVE AND QUICK RESPONSE】Has two sensitivity settings instead of a knob like the other handheld detectors,Quick response within 5 seconds.High and low sensitivity are switchable for different scenarios. Allow users with the ability to quickly and easily detect gas leaks in most hard-to-reach places around appliances.
  • 【AUDIBLE & VISUAL ALARM】Alarms continuously with 85dB tone and LCD light turn red when detecting gas leak. has a digital backlight LCD screen, visually display the gas level , easy to read in dark. Use batteries to operate and has a low-battery indicator( 2pcs AAA batteries not included). Power-save modes,auto power off after about 10 minutes if there are no operation and measurement signal.
SaleRANK NO. 6
Natural Gas Detector and Propane Detector. Natural...
  • ✅ 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.
SaleRANK NO. 7
Klein Tools ET120 Gas Leak Detector, Combustible...
  • Detection range: Approximately 50 to 10,000 ppm* (*based on Methane)
  • Two levels of sensitivity: High (approximately 50 to 1000 ppm) and Low (approximately 1000 to 10,000 ppm)
  • Five red LED's (visual) and 85dB audible alerts that increase with gas concentration
SaleRANK NO. 8
GasKnight 2.0 Natural Gas Detector & Propane...
  • ✅ PROTECT YOUR FAMILY TO THE MAX! – The All-In-One GasKnight 2.0 natural gas leak detector detects these main deadly gases once an 8% LEL is reached: 1. Natural gas (Methane, butane, ethane, LNG, etc) and 2. Propane (LPG or liquefied petroleum gas).
  • ✅ GET INSTALLATION FLEXIBILITY- This propane alarm has an extra-long 6 foot power cord which allows you to install it in the exact ideal location in your house to allow for proper gas detection
  • ✅ GET MAXIMUM PRECISION – The GasKnight 2.0 has an LCD screen that displays precise, real-time gas % readings so that you know the exact gas concentration in the air of your home at all times.

Best Gas Leaks Detectors Buying Guide

From the price comparison, little is deduced of the functionality of a gas detector. Especially for appliances intended for domestic use, these are low-cost items. The models that you find in the ranking stand out on the excellent performance confirmed by users who have tested them daily, but also for the often meagre cost.

The Gases Detected

What you need to pay attention to is the type of gas that the appliance can detect. The technical functioning at the base of the detector, a physical process often much more complex to explain than not to be used, can identify only specific types of gas and not all “dangerous” ones.

Specific detectors exist to identify an alarming concentration of carbon monoxide. This gas is released during combustion: for example, when using wood or embers to heat an environment without providing the correct exchange of air, the combustion that releases CO ends up replacing oxygen and becoming deadly.

There are several devices capable of detecting gas leaks from the pipes. In these cases, the sensor can recognize the type of concentration of rarefied or liquefied gases such as methane, propane or butane.

watch the video guide of buying best gas detectors.

They are the ones most frequently used in the home to power the water heating system or for cooking. An escape of these substances must be detected before it becomes dangerous, and the devices are often able to signal also in what concentration they recognize the danger.

Operation Reporting System

The review of the models highlights a fundamental aspect, i.e. the ability of the device to also report its operating status. It is essential to be able to count on a device that is always operational and capable of warning even of a sudden shutdown.

As a rule, different coloured LED lights are responsible for reporting various information, including the correct functioning of the device or the exhaustion of the battery, in the case of models not powered directly by the power supply.

Correct Installation

The best brand of gas leak detectors provides precise indications on how to install the appliances. For each safety device, the correct positioning constitutes the difference between a reliable detection or not.

The liquefied gas is heavier than air and therefore will tend to settle towards the ground, the right position for this type of detection is between 50 and 20 cm above the floor. Gases such as methane are lighter than air and therefore tend to rise upwards, in that case, 20/50 cm from the ceiling.

Who installs the device knows what type of leak to monitor and then invests the detector in the right place. The distance from air vents or ventilation points is also essential because it will not be in these areas of the house that the highest concentration of any dispersion will occur.


The first thing the user looks for in an appliance like that to detect the presence of gas and other toxic substances is reliability.

Well, those who bought Beghelli’s Senti Gad Duo have received confirmation that it works really and quickly. Don’t worry, it’s not that everyone suddenly had a gas leak; much more simply they performed a simple test suggested by the manufacturer.

The test as mentioned above, consists in placing a lighter near the detector and letting out a little gas. Even if the amount of gas is minimal, it is sufficient to trigger the alarm. This simple test immediately convinced users of the goodness of the tool.

In addition to LPG gas, the detector recognizes methane and carbon monoxide. The latter is a ruthless killer who kills in his sleep without the poor victim realizing what is happening.

Easy to Install

Another undeniable strength in addition to its effectiveness in detecting threats of gas and monoxide is the ease with which the detector is mounted. It is not necessary to resort to a specialized technician: fix it to a wall respecting the minimum measures that you find explained on the instructions and insert the plug into the socket.

Once this is done there is only the lighter test we mentioned in the previous paragraph to test that everything works correctly.

In the event of a threat, there is a clearly audible acoustic signal. If that is not enough, there is also a visual indicator: if the LEDs are green, everything is normal. The red colour, on the other hand, indicates the presence of gas in the air while in the event of a malfunction of the detector, a yellow light turns on.

A Little Dated

Although still on the market we have to say that this detector is a bit dated, let’s say it dates back to the early 2000s. Hence, it is not really the latest technological innovation in the sector. Still, as mentioned, it works very well.

That this is not a very recent production device is also evident from the dimensions which, according to some, are too generous.

In short, it is cumbersome. Another small complaint to be made concerns the instructions which are rather synthetic. However, we must still say that the use of the detector is straightforward.

We are satisfied with the build quality. You can immediately see that the detector is reliable and made with suitable materials, worthy of the Beghelli tradition.

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