photoelectric smoke detector test sensitivity

UL listed fire alarm, UL certified smoke detector, UL 268 smoke sensor, UL 864 control panel, UL rat

• Address：UL listed fire alarm, UL certified smoke detector, UL 268 smoke sensor, UL 864 control panel, UL rated fire safety

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• Tel：+8613261677119
• Phone：+8613261677119
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• E-mail：wanlinfirecontrol@163.com
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