System Sensor D4120W Duct Smoke Detector - NEW, Sealed, Same Day Shipping

This is a brand new, factory-sealed System Sensor D4120W duct smoke detector.

It's a critical component for HVAC systems, shutting down fans if smoke is detected in the ductwork.

This model is a standard in the industry.

It's in its original, unopened packaging.

Best of all, if you order, it ships the same day, so you're not waiting around.

Whether you're a contractor doing an install or a facility manager needing a replacement, grab this one.

It's the real deal, genuine System Sensor, part number D4120W.

Ready to ship and get your system back up to code.