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

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

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

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

SYSTEM SENSOR, 4-Wire Photoelectric Low-Flow Duct Smoke Detector, 24VDC/120VAC, Improved False Alarm Immunity

SYSTEM SENSOR Duct Smoke Detector, Photoelectric, D4120W

System Sensor D4S 4-Wire Duct Smoke Detector, Photoelectric, Sensor Only, D4S | Supplyhouse.Com

System Sensor 4WTA-B Photoelectric i3 Smoke Detector, 4-Wire, Thermal Sensor, Built-In Sounder

SYSTEM SENSOR Duct Smoke Detector, Hardwired, 2 In, 158 Degrees F, 2D51

System Sensor SBBCRL - Fire Signal - L-Series Ceiling Surface Mount

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

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

System Sensor | 2151 | Photoelectric Pendant Smoke Detector Body Only | Gas And Specialty Sensors - Smoke Detection

System Sensor SPSCWLED L-Series Indoor Speaker Ceiling-Mounted LED Strobe, "FIRE", White

System Sensor BZWC-AL - Fire Signal - L-Series Ceiling White Bezel

System Sensor SCRL Strobe, Ceiling Mount, FIRE, Red, Clear Lens , JMAC Supply

System Sensor SPSCR Speaker Strobe, Red, Ceiling Mount, FIRE Lettering, Standard Candela

System Sensor | RA100Z | Remote Annunciator | Gas And Specialty Sensors - Smoke Detection