System Sensor D4120W Detector

System Sensor D4120W Detector

  • $194.53


System Sensor D4120W Gas/Smoke Detection, 24Vac/dc or 120Vac Power Supply, 4-Wire Photoelectric Low-Flow Duct Smoke Detector with two DPDT relay contacts, Test/Reset button, and NEMA 4 Watertight Enclosure

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