System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, Sound Alert, Duct Mount, 5 in Overall Ht Model: D4120

Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: RT-3000-P

Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert, Gray Model: SL-2000-P

Air Products And Controls Duct Smoke Detector: 115V AC/230V AC/24V AC/24V DC Volt, Light Alert Model: HS-100-P

System Sensor Duct Smoke Detector: 120V AC/24V AC/DC Volt, 65 Ma @ 24V DC Current, Duct Mount Model: DUCTSD

System Sensor | D4120 | Smoke Detector 4-Wire Photoelectric Duct | Gas And Specialty Sensors - Smoke Detection

D4120 | System Sensor | Innovairflex 4-Wire Photoelectric Duct Smoke Detector

System Sensor | DUCTSD | Smoke Detector 4-Wire Photo Duct Economy | Gas And Specialty Sensors - Smoke Detection

System Sensor Duct Smoke Detector: 20V AC/24V AC/24V DC Volt, 100 Ma Current, Duct Mount, White Model: D4120W

System Sensor D4120 4-Wire Duct Smoke Detector, 4-Wire, Photoelectric, Low-Flow (24/120V), D4120 | Supplyhouse.Com

System Sensor D4120 - Smoke Detector - Duct Smoke Detector,

D4120 HONEYWELL - Fire Safety & Smoke Detector Supplies

System Sensor DUCTSD 4-Wire Photoelectric Duct Smoke Detector, DUCTSD | Supplyhouse.Com

System Sensor D2 - Smoke Detector - Duct Smoke Detector,

System Sensor ST-1.5 - Smoke Detector - Duct Smoke Detector Conduit

System Sensor ST-10 - Smoke Detector - Duct Smoke Detector Conduit

Edwards SD-2W 2Wire Duct Smoke Detector

System Sensor D4120W - Smoke Detector - Duct Smoke Detector,

Honeywell Silent Knight DUCTCOV | Duct Detector With Photo

Kidde Commercial FX-PDD | Intelligent Addressable Duct Smoke Detector

Edwards Signaling Duct Detector: 16 To 30V DC Volt, 5 To 100 Ma Current, Light Alert, Duct Mount Model: SD-2W