NOTIFIER SDX-551 Fire Alarm Smoke Detector Head - This advanced addressable detector head provides reliable fire monitoring and rapid sensing for modern commercial safety systems. - Operating voltage range of 15 to 32 VDC - Average standby current of 450 µA - Maximum alarm current of 6.5 mA - Operating temperature range from 32°F to 120°F - Compatible with Notifier FlashScan protocol

The SDX-551 represents a significant evolution in smoke detection, offering superior environmental compensation and digital signal processing compared to legacy analog models. By utilizing sophisticated drift compensation algorithms, this unit maintains precise sensitivity levels over time, effectively reducing false alarms while ensuring consistent performance in diverse commercial environments.

Advanced Sensing and System Integration

Engineered for high-performance life safety applications, the SDX-551 incorporates proprietary photoelectric technology that excels at detecting a wide range of combustion particles. Its digital communication architecture allows for seamless integration into existing fire alarm control panels, providing system administrators with exact device status and real-time diagnostic data for proactive maintenance.