https://www.fg-detection.com/flamespec-uv-ir-hd
The FlameSpec-UV-IR-HD flame detector provides ultra-fast response, high performance and reliable detection of a large variety of fires including hydrocarbon...
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https://zudensecurity.en.made-in-china.com/featured-list/sample-products.html
China Security Alarm System, PIR/IR Detector, Smoke/Gas/Co Detector, offered by China manufacturer & supplier -Zuden Technology (HK) Co., Limited, page1
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