Smoke detectors designed for use in air duct systems are used to sense the presence of smoke in the duct.
SYSTEM SENSOR D4P120 4-WIRE DUCT SMOKE DETECTOR POWERBOARD ONLY
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SKU: D4P120-MIA-J40 Categories: Duct Detectors, System Sensor Tags: DETECTOR POWERBOARD ONLY, fire alarm part, SYSTEM SENSOR D4P120