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  System Sensor D4120 4-WIRE, PHOTO, LOW FLOW

System Sensor D4120 4-WIRE, PHOTO, LOW FLOW


Our Price : $128.79

UPC Code: 783863034411

Product Code: BK-D4120


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 ductwork. This unit senses smoke in the
most challenging conditions, operating in airflow speeds of 100 to 4,000
feet per minute, temperatures of 4F to 158F, and a humidity range of 0
to 95 percent (noncondensing). 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.
  • Photoelectric, integrated low-flow technology
  • Air velocity rating from 100 ft/min to 4,000 ft/min (0.5 m/s to 20.32 m/sec)
  • Versatile mounting options in square or rectangular configuration with modular construction
  • Plug-in sensor offers superb false alarm immunity with the latest sensor technology
  • Increased wiring space with a newly added 3/4-inch conduit knock out
  • Broad range for operating temperature (-4F to 158F) and humidity (0% to 95% non-condensing)
  • Patented sampling tube installs from front or back of the detector with no tools required
  • One easy-access Test/Reset button and improved LED status
  • Patented interconnect feature for multi-fan shutdown
  • New high contrast terminal designations
  • Built-in short circuit protection from operator wiring errors
  • Field selectable settings for configuring the detector
  • Two DPDT Form-C relay contacts
  • 24 VAC/DC or 120VAC
  • Backward compatibility with existing Innovair products, including remote accessories

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