SimplexGrinnell’s fire detection and alarm capabilities help set us apart as the industry leader. Using the strength and quality of the highly respected Simplex® brand, we provide advanced solutions for customers throughout North America. Outside North America, the Simplex brand is available through a select group of international dealers and Tyco International offices. Click here for a listing of International Sales & Support centers. We have the technology and knowledge to deliver high-quality fire alarm systems in a wide range of buildings, applications and markets. Plus, we complement our products with tools and resources to support contractors, engineers, building owners and local fire officials in the design, installation, service and oversight of fire alarm systems.