多物理量参数报警输出，可由用户任选其中之一；

With signal transfer output of several physical parameters, users can choose any of them.

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报警输出：常开常闭信号，控制排风扇，电磁阀信号。

Alarm output: frequent on or off signal, control exhaust fan, electrical magnetic valve signal.

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报警器输出信号。

The alarm emits a signal.

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报警器输出信号。

The alarm emits a signal.

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