Edwards Est SIGA-SDPCB. Replacement Duct Detector.

Smart Upgrade for Duct-Mounted Detection

The Edwards EST SIGA-SDPCB Replacement Duct Detector PCB provides an easy, effective upgrade path for existing duct smoke detector assemblies. It allows you to retain the original housing while updating the detection electronics. Because of this, your installation can stay cost-efficient and minimize downtime.

High-Reliability Photoelectric Sensing

This replacement PCB offers photoelectric sensing optimized for duct-mounted systems. It responds quickly to smoke particles entering the HVAC air stream and supports safe shutdown of air-handling units (AHUs) to prevent spread of smoke. It fits with duct detector housings and helps keep smoke detection performance high.

Straightforward Installation & Maintenance

The SIGA-SDPCB board mounts into compatible detector housings and uses standard connections, simplifying replacement. Moreover, field technicians can swap the PCB in minutes rather than replacing the full detector unit. This reduces labor and system disruption and thus lowers life-safety system lifecycle costs.

Compatible & Versatile

Designed as a replacement PCB for Edwards EST “SuperDuct” style duct detectors, the module works in HVAC systems of commercial buildings, educational campuses, healthcare facilities, and industrial installations. It supports retrofits and maintenance programs alike, making it a practical choice for life-safety managers and service teams.

Trusted Edwards Quality

Backed by Edwards’ long-standing reputation in fire-alarm and life-safety systems, the SIGA-SDPCB offers field-tested performance and integration ease. By choosing this replacement board, you ensure your duct-mounted detection remains aligned with code-compliance and system reliability goals.

Download the Specification sheet in *.pdf format