Will a CO detector detect a gas leak?

Author: Miss Anita Huels  |  Last update: Monday, April 13, 2026

No, carbon monoxide (CO) alarms cannot detect natural gas leaks. They are designed to detect the presence of carbon monoxide, a poisonous gas formed during incomplete combustion of fuels like oil, gas, propane, and wood.

Is there a device that can detect gas leaks?

The gas leak alarm sensor is like a superhero that can detect butane, methane, and any odd smells lurking around. And the best part? It talks! It's got voice prompt, so it can be like, "Hey, watch out!

How to test if you have a gas leak?

Try the Soapy Water Test

Leaking gas will form tell-tale bubbles if you have a problem with a connection or pipe. Gently mix a teaspoon of dish soap with water, being careful not to create a bubble. Place the mixture where you suspect a problem. If bubbles do form, leave the area immediately.

Can you get an alarm that detects a gas leak?

Photoelectric Warning System: When the concentration of combustible gas reaches a preset level, the alarm emits an 85 dB audible and visual signal, alerting you to check for indoor gas leaks.

What kind of detector do I need for natural gas?

Detector Options

Some manufacturers of carbon monoxide detectors offer combination or 3-in-1 detectors to alert when carbon monoxide or an explosive gas such as natural gas or propane is detected.

What Most Homeowners Don’t Know About Carbon Monoxide Detectors

Will a carbon monoxide detector go off if there is a gas leak?

Will a carbon monoxide alarm detect gas leaks? Answer: While a carbon monoxide detector is helpful to prevent carbon monoxide poisoning, you cannot rely on a carbon monoxide detector to detect a gas leak. A carbon monoxide detector will sense carbon monoxide, not raw fuel or gas fumes.

Where to place a gas leak detector?

Some manufacturers recommend placing the detectors 6 inches away from the ceiling and 10 feet away from the gas appliance.

Can a CO detector detect natural gas?

Does a Carbon Monoxide Detector Detect Natural Gas? To answer the question, "does a co detector detect natural gas," no, most carbon monoxide detectors will not detect natural gas, as they are different types of gas entirely. Also, most smoke detectors will detect carbon monoxide rather than natural gas.

How do professionals detect gas leak?

Common leak-test methods are pressure and vacuum decay, tracer gas detectors, and a bubble soap leak detector. Trades and homeowners alike can use a bubble soap leak detector to check piping systems for leaks.

How much is gas leak detection?

At 1300 FINDLEAK, our gas and water leak detection cost Australia wide starts from $168 including GST. Prices may vary depending on your location, and whether it is a domestic or commercial job.

What are the symptoms of a small gas leak?

Common symptoms include:
  • Breathing difficulties.
  • Dizziness.
  • Fatigue or drowsiness.
  • Feeling lightheaded.
  • Flu-like symptoms.
  • Headaches.
  • Irritation to the eyes and throat.
  • Mood changes, including depression.

Is a slight gas smell normal?

It's normal for a faint odor to remain after lighting a stove or if the pilot light in a hot water heater, gas fireplace or other appliance goes out. Nonetheless, any possible leak must be taken seriously, especially if the odor is strong, persistent, or accompanied by a hissing sound.

What is the best way to find a gas leak?

It's essential to identify the signs of a gas leak to prevent potential harm to yourself, your family, and your property.
  1. Install a gas leak detector. ...
  2. Smell for rotten eggs. ...
  3. Listen for hissing sounds. ...
  4. Look for bubbles outside your home. ...
  5. Notice dead or dying plants. ...
  6. Pay attention to physical symptoms. ...
  7. Monitor gas usage.

How do you suspect a gas leak?

Open your windows for better ventilation. Check that stove burners, naked flames, and pilot lights are off. Finally, turn off your electricity at the fuse box. From outside the house, call your local licensed plumber or gas fitter.

How do fire departments test for gas leaks?

“Call for 911 and have a fire department respond. We have gas monitors so we can get there and try to detect where it's coming from and where most of it is.”

Is there a tool to check for gas leaks?

Use a Gas Leak Detector

These devices are specifically designed to detect the presence of natural gas or propane in a given area. They can be handheld or mounted in a fixed location. They will typically emit an audible alarm when a leak is detected.

What other gases can set off a carbon monoxide detector?

Lead acid battery chargers produce hydrogen gas which sets off CO detectors. If you are charging your caravan or boat battery at home, this could set off your CO alarm. Once you have made sure that the alarm is false, it is safe to ignore the alarm in this scenario, but remain vigilant for other signs.

How much does it cost to check for gas leak?

If you suspect a gas leak, a plumber will first conduct a pressure test. This is a relatively simple process that should cost $75 to $150 and take around 30 minutes to complete. However, some parts of the country will require a lengthier gas line pressure test that will take more than 24 hours and cost up to $500.

Is there an alarm for gas leaks?

If levels of natural gas indicate a potential leak, the natural gas detector will beep loudly and sound the following audible alarm: “Danger. Gas leak explosion risk.

Can carbon monoxide leak when gas is off?

Can a Switched-Off Boiler Leak Carbon Monoxide? Here's a reassuring answer: No, a boiler cannot produce CO when switched off. Since combustion ceases when the boiler isn't functioning, no fuel is burnt, and consequently, there's no CO generation. However, this doesn't eliminate CO concerns entirely.

Does a carbon monoxide detector work for a gas leak?

Will a carbon monoxide alarm detect gas leaks? Answer: While a carbon monoxide detector is helpful to prevent carbon monoxide poisoning, you cannot rely on a carbon monoxide detector to detect a gas leak. A carbon monoxide detector will sense carbon monoxide, not raw fuel or gas fumes.

What are the symptoms of a gas leak?

Natural Gas Leak Physical Symptoms
  • Ringing in your ears.
  • A reduced appetite.
  • Pain in the chest.
  • Nosebleeds.
  • Blistering or pale skin.
  • Flu-like symptoms.
  • Dizziness.
  • Breathing difficulties.

Who can detect a gas leak?

During a gas leak detection test, a trained specialty inspection professional uses a handheld gas leak detector to identify small leaks at their source. Although most gas leaks are small, continuous leaking indoors will still be inhaled by those living within the home.

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