System Sensor D4120 Smoke Detector

System Sensor D4120 Photoelectric Universal Smoke Detector

  • Mounting, Peak Output (dBA).
  • Flash (Candela).
  • Standby Current (uA).
  • Duct Opening.
  • Duct Width (Ft.).
  • Ambient Temp. Limits (F).
  • 4 Degrees to 158 Degrees, Coverage (Square-Ft.).
  • Air Velocity (FPM) 100 to 4000, Alarm Aux.
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  • Detail

    The InnovairFlex D4120 4-wire photoelectric duct smoke detector features a pivoting housing that fits both square and rectangular footprints and mounts to round or rectangular duct work. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, temperatures of -4°F to 158°F, and a humidity range of 0 to 95 percent (non-condensing). A plug-in sensor head offers improved false alarm immunity and simple installation, testing, and maintenance. An improved cover design isolates the sensor head from the low-flow feature for simple maintenance.

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