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Gas and Smoke Detector Testing and Certification

UL Solutions provides fire, smoke, and gas device testing and certification to help manufacturers demonstrate compliance with regulatory requirements in the global market.
man in red polo testing a smoke detector

Comprehensive, expert-led services for gas and smoke detectors

When it comes to fire detection, every second counts. That is why it is crucial to have your gas and smoke detectors evaluated by an objective, independent third party like UL Solutions.

We provide comprehensive testing, inspection and certification services that can help you demonstrate that your gas and smoke detection systems meet regulatory requirements in various markets around the globe. Our advisory services include standards interpretation, design guidance, regulatory strategy and application guidance. We can help you meet local conformity standards and requirements across the Americas, Europe, the Middle East, Asia, Australia and New Zealand.  

At UL Solutions, we understand the complex challenges you face when bringing your products to worldwide markets. We can help you confidently and efficiently address these obstacles while gaining trust from global code authorities and buyers. Our services help manufacturers streamline compliance, mitigate risk and bring products to market faster, with the confidence that regulatory authorities can validate code compliance.

Smoke detector testing

Our smoke detector testing programs evaluate to performance and reliability requirements to confirm that your devices respond as intended across real‑world conditions. As detection technologies become more interconnected and resilient, we help you confirm earlier detection and robust operation across a range of environments.

Smoke alarm certification 

We certify smoke alarms to standards referenced by building and life‑safety codes. Updates to smoke alarm requirements have focused on improving detection of modern fire scenarios while reducing nuisance alarms associated with cooking, changes that support better real‑world performance. 

Gas detector certification 

From residential to commercial use cases, our team evaluates gas detectors to applicable requirements so you can demonstrate safety and performance to customers and authorities having jurisdiction (AHJs). 

Efficiently address requirements and optimize costs with bundled programs

We can bundle our services for gas and smoke detectors to address the requirements of various regions where the relevant regulations and market expectations rely on the following standards:

  • UL
  • ULC (Canada)
  • Australian Standard (AS)
  • European Standard (EN)
  • International Organization for Standardization (ISO)
  • Brazilian National Standards (NBR)

By bundling services, you can avoid duplication and minimize the number of your providers. This allows you to rely on a single testing body, helping reduce your time to market and identify potential cost savings.

EN Smoke Detection Standards

  • EN 54-7

    Smoke Detectors - Point Detectors

  • EN 54-12

    Line-Type Optical Beam Smoke Detectors

  • EN 54-20

    Aspirating Smoke Detectors

  • EN 54-29

    Smoke/Heat Multisensor

  • EN 54-31

    Smoke / Carbon Monoxide / Heat Multisensors

EN Smoke / CO Alarm Standard

  • EN 14604

    Smoke Alarm Devices

  • EN 50291-1 / -2

    Carbon Monoxide Alarms

AS Smoke Detection Standards

  • AS 3786

    Smoke Alarm Devices

AS Smoke Alarm Standard

  • AS 7240.7

    Smoke detectors - Point Detectors

Watch now: Smoke Alarm Safety

Learn about updates to smoke alarm standards

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UL 217 and UL 268 for smoke detection

  • UL 217 addresses smoke alarms and was updated in 2024 to add new fire test scenarios (e.g., flaming and smoldering polyurethane foam) and a cooking nuisance test to reduce unwarranted activations. 
  • UL 268 addresses smoke detectors for fire alarm systems and has also been updated in parallel, reflecting current fire dynamics and helping distinguish between nuisance sources and true fire conditions. 

UL 2075 for gas detectors

Gas detectors can support detection and early warning of off gases emitted from batteries used in data centers and energy storage systems prior to thermal runaway events. UL Solutions offers comprehensive E2E evaluation of gas sensors for different gas leak signatures, as well as end product detectors that incorporate sensors and produce notification and alarm outputs. Certification testing and inspection from UL Solutions applies our technical excellence in complex gas detection science to deliver trust and market acceptance. 

UL 2034 for carbon monoxide alarms

UL 2034 covers single and multiple station carbon monoxide (CO) alarms. Listed CO alarms must meet response‑time requirements at various CO concentrations and avoid nuisance alarming from non‑CO vapors commonly present in residences.

Where to view UL Standards (UL 1484 and more)

You can view scopes and details for UL Standards, including UL 1484, in the UL Standards Catalog, with complimentary online viewing.

Why UL Solutions

Safety science leadership

Since 1894, UL has advanced fire and life‑safety technology through pioneering research and leadership in codes and standards, work that helps save lives and protect property. Now, as a global leader in safety science, UL Solutions can help you develop greater trust in your gas and smoke detection technologies, services and environments. As we help you demonstrate that your products meet global and local regulations and standards, we can also help you protect and enhance your brand’s reputation in the global marketplace. 

Support for regulatory acceptance 

Our enhanced and smart UL Certification Marks are designed to pave the way for regulatory acceptance, giving code officials clear, trusted evidence of compliance.

Fire alarm control equipment

If your devices interface with control units, explore Fire Alarm Control Equipment Testing and Certification to assess interoperability and design performance. Learn how we evaluate control equipment to globally recognized standards and help you bring products to market quickly.

Fire Alarm Service Certification

Check certifications in Product iQ®

Commercial gaseous fire suppression system with aspirating smoke detectors.
Commercial gaseous fire suppression system with aspirating smoke detectors.

Fire alarm control equipment

If your devices interface with control units, explore Fire Alarm Control Equipment Testing and Certification to assess interoperability and design performance. Learn how we evaluate control equipment to globally recognized standards and help you bring products to market quickly.

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Frequently asked questions

Smoke detectors are designed to detect smoke from fire conditions, not combustible gases; gas detection is handled by dedicated gas detectors evaluated to their applicable requirements.

Smoke detectors and carbon monoxide (CO) alarms serve different hazards. CO alarms are investigated to UL 2034 and use CO sensors; smoke alarms are evaluated to UL 217. Combination units are certified when they comply with both sets of requirements.

CO alarms detect carbon monoxide, not methane or other combustible gases. Combustible gas detection requires devices intended and evaluated for that purpose. 

Gas detectors provide early warning of off‑gases emitted by lithium‑ion batteries and energy storage systems, helping identify abnormal conditions before thermal runaway or fire events.

Aspirating smoke detectors provide very early warning by continuously sampling air and detecting smoke at extremely low concentrations, helping data centers respond before equipment damage or downtime occurs. 

  • UL 217 applies to smoke alarms (e.g., single/multiple station alarms), with recent editions adding tests for modern fire scenarios and a cooking nuisance test. 
  • UL 268 applies to smoke detectors for fire alarm systems and has parallel updates addressing detection performance and nuisance sources. 

The 10th edition of UL 217 harmonizes performance requirements applicable to Canada for smoke alarms. For Europe, market access typically involves CE/UKCA and, optionally, the UL‑EU Mark; UL Solutions can evaluate to European requirements and supports EU/UKCA pathways.