Duct Detectors

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Analogue Addressable Duct Detector


The InnovairFlex DNR-AUS Intelligent Photoelectric Duct Smoke Detector features a pivoting housing that fits both square and rectangular footprints, capable of mounting to a round or rectangular duct. These units sense smoke in the most challenging conditions, operating in airflow speeds of 0.5 to 20 metres per second, temperatures of -20 °C to 70 °C and a relative humidity range of 0 to 95 percent, non-condensing. An improved cover design isolates the sensor head from the Low Flow feature for simple maintenance. A Cover Tamper feature provides a fault signal if the sensor cover is removed or improperly installed. The InnovairFlex housing has a 20 mm conduit knockout and ample space for wiring. The InnovairFlex Duct Smoke Detector can be customized to meet local requirements and specifications without additional wiring. The product line utilises a new sampling tube range, but remains compatible with all previous Innovair models, including remote test accessories.


  • Utilises standard plug-in conventional photo-electronic smoke detector (supplied separately)
  • Integrated low-flow technology
  • Air velocity rating from 0.5 m/s to 20 m/s
  • Versatile mounting options: square or rectangular configuration
  • Broad ranges for operating temperature (-20 °C to 70 °C) and humidity (0% to 95% non-condensing)
  • Sampling tube installs from front or rear of the detector
  • Transparent cover for convenient visual inspection
  • Cover tamper signal
  • Large wiring space with 3 x 20 mm conduit knockouts
  • Remote test ability, with external power and RTS451KEY
  • Powered from the analogue addressable loop
  • UL 268A listed for duct detection applications
  • Independently tested and ActivFire listed to AS 1603.13. Certificate number afp-2483

Ordering Information

Product Code



AA Duct Housing, No Relay, No Detector

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