Fire-Lite D355PL Fire Alarm Duct Detector - NOTIFIER FRM-1 Relay Module. This comprehensive smoke detection solution integrates robust air duct monitoring with versatile relay control to ensure rapid response within HVAC systems. - Detects smoke in air handling ducts - Includes Notifier FRM-1 control relay - Compatible with Fire-Lite addressable systems - Designed for reliable life-safety operations - Engineered for quick duct installation

This combination surpasses standard residential sensors by providing industrial-grade smoke detection specifically calibrated for high-velocity ventilation environments. Unlike legacy detector heads, this modern assembly ensures consistent sensitivity across varying airflow conditions, providing a significant upgrade for facility fire management systems.

Enhanced Detection and Control Reliability

The D355PL offers specialized sensing technology that minimizes false alarms caused by dust or humidity, while the FRM-1 module provides the necessary interface for seamless integration with broader fire alarm control panels. Together, these components deliver a sophisticated monitoring platform that meets stringent safety standards for commercial and industrial climate control infrastructure.