The Notifier FCO-951 is an intelligent, addressable multi-criteria detector that combines photoelectric, infrared, heat, and carbon monoxide sensing for comprehensive fire and life safety. Designed to reduce nuisance alarms while maintaining rapid detection, it uses advanced algorithms and meets UL 268 (7th edition), UL 2075, and UL 521 standards. The unit includes a 10-year CO sensor and features a low-profile design with a rotary address dial for easy configuration. It is compatible with Notifier’s FlashScan protocol and select CLIP systems. Ideal for commercial, institutional, and industrial fire alarm installations requiring both fire and CO detection.