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- The D4120 four-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 4000 ft/m, temperatures of -4 to 158 deg F and a humidity range of 0 to 95% (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
- Voltage Rating24/120VHeight2.5 inLength14.38 inManufacturerDaikinManufacturer #D4120Response Time15 secTemperature Rating-4 to 158 degFWidth5 in