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System Sensor 2WTR-B Photoelectric i3 Series Smoke Detector, 2-Wire, Thermal Sensor, Form Relay, White
2WTR-B|BK-2WTRB
System Sensor 2WTR-B Photoelectric i3 Series Smoke Detector, 2-Wire, Thermal Sensor, Form Relay, White
2WTR-B|BK-2WTRB