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fire door wireless alarm
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Fire Door Hold Open Device with Alarm: Professional Certifie···
Fire Door Hold Open De···
2026-07-15
Fire Door Hold Open Device with Alarm manufactured by Wanlin Fire Control — EN 14637 / CE / RoHS certified fire door alarm with magnetic contact sensor, 85 dB siren, and reliable door position monitoring. Factory-direct pricing with OEM/ODM services, global shipping. Suitable for commercial, healthcare, hospitality, and industrial fire door safety applicati···