- MaterialPlastic
- Number Of FlowerSmoke Detectors
- Supply TypeManufacturer
- Preferred Buyer Location All over the world
sr-812dc-4 4-wire network photoelectric smoke & heat alarm 1.power supply non-polar input 2.infrared photoelectric sensor 3.mcu processing adopted, eliminate false alarm 4.network output 5.smt manufacturer technology, high stability 6.dustproof, mothproof, anti-light interferences design  7.stain steeless shield,
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