System Sensor D4240


4-Wire Photoelectric Low-Flow Smoke Detector

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  • Factory New
Brand: System Sensor Part #: 31624 Categories: , Manufacturer Part #: D4240 Tag:


The InnovairFlex D4240 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 operates 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 (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.


Weight 1.00 lbs


4-Wire Photoelectric Duct Smoke Detector-D4240


System Sensor - Data Sheet