Durable ABS Plastic: Ensures long-lasting protection against fire hazards. 85 dB Alarm Sound: Audible warning to alert occupants promptly. Beam Sensor Technology: Accurately detects smoke for early ...مشاهده بیشتر
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Infrared Beam Photoelectric Smoke Detector 15-28V DC Fire Alarm System Warehouse Tunnel Large Space Industrial Use OEM ODM