System Sensor, InnovairFlex 4-Wire Photoelectric Duct Smoke Detector D4120
The InnovairFlex D4120W watertight 4-wire photoelectric duct smoke detector 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.
Features & Benefits
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
New High Contrast Terminal Designations
Built-in Short Circuit Protection from Operator Wiring Errors
Field Selectable Settings for Configuring the Detector