System Sensor's DUCTSD Smoke Detector

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System Sensor’s DUCTSD duct smoke detector has a cover-integrated smoke test port that enables testing with any approved aerosol test smoke without the need of special tools or attachments. It uses a plug-in photoelectric smoke sensor with operating conditions ranging from –4 to 158°F and air speeds from 100 to 4,000 ft. per minute also without additional attachments. A wiring diagram and a QR code that links directly to the installation manual are printed on the inside of the black power board cover.