Innovair System Sensor D2 2-Wire Photoelectric Duct Smoke Detector No Box

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System Sensor D2 2-Wire Duct Smoke Detector **New In Box**

Innovair System Sensor D2 2-Wire Photoelectric Duct Smoke Detector No Box

System Sensor / 2-Wire Duct Smoke Detector / D2 / Replaces Model DH100LP

System Sensor Fire Alarm Smoke Duct Detector D2

System Sensor D4120 4 Wire Photoelectric Duct Smoke Detector