The Edwards EST SIGA-SD Photoelectric Duct Smoke Sensor is part of the electronic addressable Signature Series of fire alarm controls and accessories from GE / EST Fire Life and Safety. A Signature Series photoelectric sensor is incorporated into the design of each SIGA-SD duct smoke detector.

Compatible only for use with Edwards EST Signature Loop Controller.

Provides one Form C auxiliary alarm relay for controlling ancillary equipment (e.g., HVAC controls).

-20 to 158 °F (-29 to 70 °C) operating range with 100 ft/min. to 4,000 ft/min air velocity rating

15.2 to 19.95 VDC operation

ACCESSORIES:
— SD-T8 8-inch sampling tube
— SD-T18 18-inch sampling tube
— SD-T24 24-inch sampling tube
— SD-T36 36-inch sampling tube
— SD-T42 42-inch sampling tube
— SD-T60 60-inch sampling tube
— SD-T78 78-inch sampling tube
— SD-T120 120-inch sampling tube
— SIGA-LED Remote alarm LED
— SD-TRM Remote test station, magnetic
— SD-TRK Remote test station, keyed
— SD-VTK Air velocity test kit (stoppers only, etc)
— SD-GSK Cover gasket kit
— SD-MAG Test magnet kit
— SIGA-SDPCB Replacement PCB/Signature sensor kit