System Sensor 2400 Smoke Detector White

System Sensor 2400 Smoke Detector (Slight Yellowing)

System Sensor 2400 Photoelectric Smoke Detector Head (No Base)

System Sensor 2400 2-Wire Smoke Detector MULTIPLE AVAILABLE 400 Series

Lot (2) System Sensor 1400 Smoke Detector Yellowed

System Sensor 2400 2-Wire Smoke Detector

System Sensor 2WT-B I3 Series Smoke Detector 2-Wire Plug-In Photo 12/24V

System Sensor 2400 smoke detector; NOS New in open box