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Bathroom automatic exhaust fan
Source: InternetPublisher:吃掉星星 Updated: 2010/02/23
Relevant key device information applied in this article:
RD627
9013
bathroom automatic exhaust fan is based on the original exhaust fan and adds an automatic control device. It can open when people enter and automatically close after people leave. It is convenient and flexible to use. . The circuit principle is shown in the figure above.
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