UL Worldwide
North America
Europe
Denmark
France
Germany
Sweden
Switzerland
U.K.
Latin America
Asia Pacific
Argentina
Brazil
Mexico
Australia
India
Malaysia
New Zealand
Thailand
Hong Kong
Singapore
Learn more about the Product Mindset — a global collective consciousness reflecting how people feel about products — whether they are making and selling them or buying and consuming them.
more
UL Advantage is a revolutionary approach to safety certification, providing a faster, smarter, more flexible path to the proven benefits of UL certification.
more
Helping safe, compliant products to reach the global marketplace.
more
Delivering a breadth of services for the growing area of sustainability.
more
Leveraging UL's engineering, safety and performance expertise for the critical systems essential to our well-being.
more
Delivering product testing and assessments demanded by the global supply chain.
more
Offering training, advisory services and thought leadership to give businesses a competitive edge.
more
Share

Five things to know

Sixty-five percent of reported home fire deaths occurred in homes with either no smoke alarms or no working smoke alarms, according to the National Fire Protection Association. Here are the most important things consumers should remember about smoke alarms:

  1. Install both photoelectric and ionization smoke alarm technologies to optimize your family's fire protection by providing them with the best available escape time in residential fires.
  2. Remember that interconnected smoke alarms also are beneficial to fire protection. When one smoke alarm senses fire, all alarms sound, regardless of where the fire starts.
  3. Install at least one UL-Listed smoke alarm on every level of the home, including the basement and outside each sleeping area.
  4. Never disconnect a smoke alarm or remove the batteries for any reason, except to change them. If the smoke alarm begins chirping or causing a nuisance, it's best to replace the batteries.
  5. Test your smoke alarm at least once a month.