Please upgrade to the new Edge browser, or use Chrome, Firefox or Safari, before continuing. Internet Explorer will not support the best shopping experience on the ADI Digital Branch site after March 12. close button

System Sensor D4120W Watertight 4-Wire Photoelectric Duct Smoke Detector, 24VDC/120VAC

Brand: System Sensor
ADI #:BK-D4120W Model #: D4120W  Name: System Sensor D4120W Watertight 4-Wire Photoelectric Duct Smoke Detector, 24VDC/120VAC
  • NEMA Type 4 UL listed for non-hazardous indoor and outdoor applications
  • 4-Wire Photoelectric, integrated low-flow technology
  • UV Resistant, UL listed housing and cover materia
close button