Edwards Signaling SD-T78 Air Sampling Tube SF 12/03 or monitor type dry contact

or monitor type dry contact initiating device circuits (IDCs) to the Edwards Signaling control panel

70-Volt Speaker designed for broadcasting high quality

making it an ideal choice for use in a wide range of settings

• D340 Two-wire Duct Detector Housing (12 VDC or 24 VDC)

DPU Field-Device Programmer / Test Unit – addressing and functional testing

Edwards Signaling SD-T78 Air Sampling Tube SF 12/03 or monitor type dry contactThe Edwards SD T78 78 inch Sampling Tube provides effective airflow sampling for duct smoke detection in HVAC systems with ducts up to 78 inches wide. Designed to work with Edwards duct smoke detectors, this tube draws air evenly across the ducts entire width and directs it into the detectors sensing chamber. This consistent sampling process enables earlier smoke detection and supports NFPA code compliance in larger duct systems.