Combination 3-in-1 Hardwired Smoke, Fire and CO Alarm Detector 10-Year Sealed Battery Backup, Multi-Criteria Detection

Advanced Intelligence Detects Both Fast Flaming and Slow Smoldering Fires. AI-Artificial Intelligence Techniques Used to Classify Smoke and Carbon Monoxide Profiles. Microprocessor Virtually Eliminates Nuisance Alarms Caused by Everyday Cooking Smoke, Steam, etc. Detection of Polyurethane Foam in both Slow Smoldering and Fast Flaming Fires. Immunity to High-Voltage Current Surges. No Batteries to change. Lithium-Free 10-year Permanent Power. Meets New UL 217 8th Edition Requirements.|Multi-criteria detection|Smoke and carbon monoxide sensors conform to new UL 217 8th Edition standards|Hardwired with lithium-free 10-year battery backup|Tamper-proof design prevents battery removal|No batteries to change-ever|Lithium-free 10-year battery backup|Alkaline batteries are safer and more eco-friendly|LED status indicator|Inter-connectable up to 24 USI units|Base diameter: 5-5/8 in.