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System Sensor InnovairFlex D4120W Smoke Detector - Photoelectric

System Sensor InnovairFlex D4120W Smoke Detector - Photoelectric
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System Sensor InnovairFlex D4120W Smoke Detector - Photoelectric


The InnovairFlex D4120W watertight 4-wire photoelectric duct smoke detector is UL listed as a watertight enclosure providing protection against falling dirt, rain, windblown dust, splashing and hose directed water. D4120W duct smoke detector features a pivoting housing that fits various applications: both square and rectangular footprints mount to round or rectangular ductwork. 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 (noncondensing). A plug-in sensor head offers superior false alarm immunity. These features, plus a NEMA 4 rating, allow operators to mount the detector to rooftop HVAC equipment or use the detector in other harsh environments.

Also known as

  • System Sensor By Honeywell-Us NEMA4 WATERTIGHT, 4-WIRE, PHOTO - BK-D4120W


Weight  1.5
Product Type  Smoke Detector
Sensing Technology  Photoelectric
Height  14.4"
Width  5"
Depth  2.5"
Input Voltage Range  20 V DC to 29 V DC / 24 V AC / 120 V AC
Status Indicators  LED / Switch - One easy-access Test/Reset button / Alarm
Product Line  InnovairFlex

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