3 products

  • System Sensor DNR Duct Smoke Detector installed in HVAC duct for early smoke detection and safety.
    System Sensor

    System Sensor DNR Duct Smoke Detector

    System Sensor DNR conventional duct smoke detector. System Sensor (Honeywell brand) commercial fire-alarm device — compatible with Notifier,...
    $156.00
    $156.00
  • System Sensor D4120 duct smoke detector for fire alarm systems, mounted on a ceiling with visible wiring.
    System Sensor

    System Sensor D4120 D4120 4-Wire Duct Smoke Detector

    System Sensor D4120 D4120 4-wire conventional duct smoke detector. System Sensor (Honeywell brand) commercial fire-alarm device — compatible...
    $219.51
    $219.51
  • System Sensor D4120W duct smoke detector for fire alarm systems, mounted on a ceiling with wiring visible.
    System Sensor

    System Sensor D4120W D4120 4-Wire Duct Smoke Detector

    System Sensor D4120W D4120 4-wire conventional duct smoke detector. System Sensor (Honeywell brand) commercial fire-alarm device — compatible...
    $272.01
    $272.01