Edwards Signaling SD-T42

The Edwards SD-T42 42-inch Sampling Tube supports accurate smoke detection in HVAC ducts measuring up to 42 inches wide. It works with Edwards duct smoke detectors to provide consistent air sampling across a larger duct span. By delivering uniform airflow to the sensing chamber, this tube enhances early detection and strengthens compliance with fire safety standards.

Because of its mid-range length, the SD-T42 fits perfectly into commercial systems that require more reach than compact tubes can offer.