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The smart relay uses relay-based outputs and AC inputs
automation networks Weight Approx
Multi-Location Support: Compatible with up to 9 remote units (HQA‑RS remotes) for control from multiple positions
KC Enclosure Mountable
Field Replaceable Modules including aspirator
Edwards Signaling 2551F Intelligent Photoelectric Fire Detector Head for Fire Alarm Systems Don't add The smart relay uses relay-basedDescription The Edwards Signaling 2551F is a photoelectric fire detector head designed to provide reliable smoke detection for intelligent fire alarm systems. Manufactured by Edwards Signaling, the 2551F utilizes photoelectric sensing technology to detect visible smoke particles, helping deliver early fire detection while minimizing nuisance alarms in commercial and institutional facilities. Technical Specifications Condition New Never Used Surplus
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