Smoke detectors designed for use in air duct systems are used to sense the presence of smoke in the duct.
SYSTEM SENSOR D4S 4-WIRE DUCT SMOKE DETECTOR SENSOR ONLY.
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Out of stock
SKU: D4S-MIA-J50 Categories: Duct Detectors, System Sensor Tags: DUCT SMOKE DETECTOR SENSOR, fire alarm part, SYSTEM SENSOR D4S 4-WIRE