4-Wire Photoelectric Smoke Detector with DC 9-28V Relay Output and 80 dB Alarm for Substation Fire Alarm System Video from China

4 Wire Smoke Detector

May 10, 2026

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Product Description: 4-Wire Photoelectric Smoke Detector DC 9-28V Relay Output Fire Alarm Sensor Product Overview Designed for substation fire alarm systems, this 4-wire photoelectric smoke detector provides reliable fire ...learn more

4-Wire Photoelectric Smoke Detector with DC 9-28V Relay Output and 80 dB Alarm for Substation Fire Alarm System

4-Wire Photoelectric Smoke Detector with DC 9-28V Relay Output and 80 dB Alarm for Substation Fire Alarm System

100

USD9

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Shenzhen Xinhe'an Technology Co., Ltd.

Verified Supplier

3 Years

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