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System Sensor InnovairFlex D4120 Smoke Detector - Photoelectric

System Sensor InnovairFlex D4120 Smoke Detector - Photoelectric
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System Sensor InnovairFlex D4120 Smoke Detector - Photoelectric


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.

  • SKU: 227966238
  • UPC: 783863034411
  • UPC 14: 00783863034411
  • Weight: 1.5
  • Product Type: Smoke Detector
  • Sensing Technology: Photoelectric
  • Height: 14.4"
  • Width: 5"
  • Depth: 2.5"
  • Brand Name: System Sensor
  • 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 Model: D4120
  • Product Name: InnovairFlex D4120 Smoke Detector
  • Product Line: InnovairFlex
  • Manufacturer Part Number: D4120

Also known as

  • System Sensor By Honeywell-Us 4-WIRE PHOTOELECT DUCT SMK DET - BK-D4120

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