Duct Smoke Detection

Duct Smoke Detector, Conventional 4-wire Photoelectric, System Sensor D4120

Multi-signaling Duct Accessory With Add-on Strobe, System Sensor Rts2-aos

Piezo Annunciator, 24 VDC, 12.5 mA to 30 mA, Totaline® P271-APA151

Remote Test Station With Key Lock, For Use With Duct Smoke Detector, 14 to 140 deg F, System Sensor® RTS151KEY

Sampling Tube, For Use With Conventional and Intelligent Duct Smoke Detectors, -4 to 158 deg F, System Sensor® DST3

Sampling Tube, For Use With Conventional and Intelligent Duct Smoke Detectors, -4 to 158 deg F, System Sensor® DST5