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Nice smoke detector price optical smoke alarm smoke detector types for fire safe

Published by Shenzhen SUMRING Technology Co. Ltd2019-11-11

Nice smoke detector price optical smoke alarm smoke detector types for fire safe

our top smoke detectors with Low battery voltage, When the buzzer make a "Di" every 8 seconds, the LED have a flashing at the same time, it means the battery voltage is low

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  3. Add : C-510, National Security Building, No. 129 Pingxinbei Road, Pinghu Street, Longgang District, Shenzhen City, Guangdong, China

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