InnovairFlex (D4120) System Sensor Duct Smoke Detector

The System Sensor D4120 is a duct smoke detector featuring photoelectric, low-flow technology for reliable smoke detection in HVAC systems. It supports air velocities from 100 ft/min to 4,000 ft/min and offers wide temperature and humidity ranges. The detector includes a patented sampling tube, easy test/reset button, and multi-fan shutdown feature for enhanced performance. With false alarm immunity, short circuit protection, and field-selectable settings, the D4120 provides efficient and safe operation in commercial and industrial environments.

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Help Resale

7200 Fair Oaks Blvd Ste 120

Carmichael CA 95608

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