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System Sensor 2W-B i3 Series 2-wire, Photoelectric i3 Smoke Detector: Amazon.com: Tools & Home Improvement
Photoelectric Smoke Detector | Smoke Detectors | Sensors | Smoke Detectors | Honeywell Building Solutions
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System Sensor 2WTA-B I3 Series 2-Wire Photoelectric Thermal Smoke Detector With Sounder | AlarmLiquidators.com
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