• Duct smoke detector on a white background
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System Sensor

System Sensor D4S 4-Wire Photoelectric Sensor Component

System Sensor D4S 4-Wire Photoelectric Sensor Component

MPN: D4S

$165.04
$165.04
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The InnovairFlexâ„¢ Series are the only duct smoke detectors flexible enough to fit configurations from square to rectangular and everything in between.

Main Features

  • 4-Wire Photoelectric, integrated low-flow technology
  • Air velocity rating from 100'/min to 4,000'/min (0.5 m/s to 20.32 m/sec)
  • Versatile mounting options: square or rectangular configuration
  • Plug-in sensor offers superb false alarm immunity and the latest sensor technology
  • Broad ranges for operating temperature (–4°F to 158°F) and humidity (0% to 95% non-condensing)
  • Rotary address switches
  • Patented sampling tube installs from front or back of the detector with no tools required
  • Increased wiring space with a newly added 3/4-inch conduit knockout
  • One easy-access Test/Reset button and improved LED status
  • Patented interconnect feature for multi-fan shutdown