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the term “SFP-2404” refers to both SFP-2404 and SFP-2404E models
open circuit
Optional SLC-3LS 318-PT expander module
System Sensor 4W-B Photoelectric i3 Series Smoke Detector
SPDT W/Led W/Ca
System Sensor M500DM Dual Monitor Module Fire Sale the term “SFP-2404” refers toThe System Sensor M500DM Dual Monitor Module is intended for use in intelligent, two wire systems It provides two independent 2 wire initiating device circuits (IDC), at two separate, consecutive addresses. It is capable of monitoring normally open contact fire alarm and supervisory devices, or either normally open or normally closed security devices. The module has a single panel controlled red LED.