A Legacy of Safety, A Future of Innovation
For over 50 years, Universal Security Instruments (USI) has been at the forefront of home safety, designing advanced smoke, carbon monoxide, and gas alarms trusted by millions. Known for breakthrough technologies and reliable protection, USI continues to evolve—delivering smarter, safer solutions that protect what matters most.

Who we are
About USI
Universal Security Instruments (USI) is a global leader in innovative home protection solutions. As one of the world’s largest manufacturers of smoke and carbon monoxide alarms, USI holds 11 patents for advanced detection technologies developed through proprietary research in fire science and detection.
Since 1973, USI has produced a comprehensive range of products that are ETL certified to UL standards.USI offersbattery-operated and hardwired smoke and fire alarms known for their reliability and long life-span.

Why Choose USI?
Built on Innovation. Backed by Experience.
- Innovative detection technologies from proprietary fire research
- Approved to sell in multiple countries
- 10-year battery options – safer & eco-friendly
- Superior false alarm resistance
- Quick Find® – identifies first alarm to sound
- Over 50 years of industry expertise

Together for Safer, Smarter Homes
More Protection. More Innovation. All Under One Roof
In 2025, USI proudly joined the Feit Electric family of brands. This strategic acquisition brings together USI’s trusted legacy in home safety and Feit Electric’s leadership in lighting and smart home innovation. Together, we’re expanding our reach and product offerings to deliver a more comprehensive suite of safety and home solutions—empowering families with greater peace of mind through advanced technology and dependable protection.


Our Commitment: Safer Tomorrow
Building Safer Communities
At USI, safety goes beyond the products we make—it’s about the people and communities we serve. We are proud to be part of a global movement toward safer, smarter, and more connected homes, where protection is built into everyday life.
Whether you’re a homeowner, landlord, contractor, or distributor, our mission remains the same: to help safeguard what matters most—your family, your property, and your peace of mind.
We believe a safer tomorrow starts with meaningful partnerships. That’s why we work closely with builders, dealers, nonprofits, and local communities to raise awareness, improve access to life-saving technologies, and advance safety standards for all.
Together, we're building more than devices—we’re building trust, resilience, and a future where every home feels secure.