The System Sensor D4120W is a Watertight 4-wire photoelectric duct smoke detector. Also, this device is UL listed as a watertight enclosure providing protection against falling dirt, rain, windblown dust, splashing
and hose directed water. D4120W duct smoke detector features a pivoting housing that fits various applications: both square and rectangular footprints mount to round or rectangular ductwork.
The System Sensor D4120W senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4,000 feet per minute, as well as temperatures of –4°F to 158°F, and a humidity range of 0 to 95 percent (noncondensing). Furthermore, a plug-in sensor head offers superior false alarm immunity. Additionally, these features, plus a NEMA 4 rating, allow operators to mount the detector to rooftop HVAC equipment or use the detector in other harsh environments.
This InnovairFlex duct smoke detector customized to meet local codes and specifications without additional wiring. The new InnovairFlex product line is compatible with all previous Innovair models, including remote test accessories.
Features / Specifications
- 0% to 95% Relative Humidity
- -4°F to 158°F Operating temperature
- 10A @ 30 VDC
- Patented sampling tube installs from front or back of the detector with no tools required
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