Natural Gas Alarms & Natural Gas Leak Detectors

DeNova Detect natural gas alarms deliver industry-leading early warning of dangerous gas leaks in the home using advanced 10% LEL sensing technology. Designed as high-performance natural gas detectors, these alarms can detect methane and other combustible gases up to 11 minutes faster than many traditional gas alarm units.

When you choose DeNova Detect Natural Gas Alarms, you’re investing in a safety device engineered for how natural gas behaves. Because natural gas is lighter than air and collects near the ceiling, proper placement is critical. DeNova’s battery-powered natural gas detectors allow flexible, high-mount installation where gas is most likely to accumulate.

Installing a natural gas detector adds a vital layer of home protection, alerting your home with clear voice instructions so you can act quickly, evacuate safely, and help prevent fires, explosions, or other gas-related emergencies.

Why should I buy natural gas alarms?

You should buy natural gas alarms because they detect methane and other combustible gas leaks before they reach dangerous or explosive levels. Unlike carbon monoxide alarms, natural gas detectors are designed to sense raw fuel leaks that your nose may miss, especially while you are asleep. Natural gas alarms provide early warning so you can act quickly, evacuate safely, and help prevent fires or explosions. Adding a natural gas detector gives your home an essential layer of protection that safeguards both your family and your property.

Where should I install natural gas alarms?

Install natural gas alarms within 6–12 inches of the ceiling in rooms that contain natural gas appliances such as furnaces, water heaters, stoves, or fireplaces. Place a natural gas detector outside sleeping areas and on each level of the home so leaks are detected quickly, including at night. Avoid installing natural gas alarms directly above appliances, inside cabinets, or near vents where airflow can interfere with detection.

Where should I avoid installing a natural gas detector?

Avoid installing a natural gas detector in areas where airflow, humidity, or contaminants can interfere with accurate detection. Do not place natural gas alarms directly above gas appliances, inside cabinets, near HVAC vents, ceiling fans, or open windows, as moving air can dilute gas before it reaches the sensor. Natural gas detectors should also be kept out of bathrooms, laundry rooms, and other high-moisture areas to prevent false alarms. Never install a natural gas detector in garages or unconditioned spaces.

How many natural gas leak detectors should I have in my home?

You should have at least one natural gas leak detector on every level of your home and one in each room that contains a natural gas appliance, such as a furnace, water heater, or gas stove. Install an additional natural gas detector outside sleeping areas so leaks are detected while occupants are asleep.

How long do natural gas detectors last?

DeNova Detect offers industry leading models with a full 10-year battery and product service life. A standard 6 year alarm is also available. It is important to remember that a natural gas alarm must be replaced entirely once it reaches its end-of-life date because the internal sensors degrade over time and lose their ability to accurately detect methane. To ensure your natural gas leak detector is still functioning properly, you should listen for the "end-of-service-life" alert, which on DeNova models is a yellow blinking LED and a voice prompt that says, "Please replace detector."

Will a carbon monoxide alarm detect natural gas?

No, a standard carbon monoxide alarm will not detect natural gas because these devices are designed to sense two completely different chemical threats. A dedicated natural gas alarm is required to detect the raw methane that poses an immediate explosion risk. Relying solely on a CO detector will leave your surroundings vulnerable to leaks from stoves or furnaces.

Does the Denova Detect Store have a carbon monoxide alarm?

The DeNova Detect Store offers the first and only 10-year battery-powered 2-in-1 natural gas and carbon monoxide alarm available in the U.S. This advanced home natural gas detector uses dual-sensor technology, combining a MEMS sensor for methane with an electrochemical sensor to protect your family from poisonous CO levels.