System Sensor D4120 Duct Smoke Detector , 24 VAC

SYSTEM SENSOR D4120 INNOVAIR FLEX PHOTOELECTRIC LOW PRESSURE DUCT SMOKE DETECTOR 4-WIRE FOR AIR VELOCITY AS LOW AS 100 FPM

Smoke Detector Alarms
MFG #: D4120 Product ID:3116490
Famous Supply
  • Dimensions: 14.38 in L x 5 in W x 2.5 in D Rectangular/7.75 in L x 9 in W x 2.5 in D Square
  • Humidity Rating: 0 to 95%
  • Operating Temperature: -4 to 158 deg f
  • Power Source: 24
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 ductwork. This unit senses smoke in the most challenging conditions, operating in airflow speeds of 100 to 4000 ft/min, temperatures of -4 to 158 deg F, and a humidity range of 0 to 95% (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.
  • Features
  • Standards & Approvals
4-wire photoelectric integrated low flow technology
Air velocity rating from 100 ft/min to 4000 ft/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 to 158 deg F and humidity 0 to 95% non-condensing
Patented sampling tube installs from front or back of the detector with no tools required
Increased wiring space with a newly added 3/4 in conduit knockout
One easy access Test/Reset button and improved LED status
Patented interconnect feature for multi-fan shutdown
New high contrast terminal designations
Built-in short circuit protection from operator wiring errors
Field selectable settings for configuring the detector
Two DPDT Form-C relay contacts
Backward compatibility with existing Innovair products including remote accessories
FM Approved
MSFM Approved
UL Listed