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

报警输出：常开常闭信号，控制排风扇，电磁阀信号。

youdao

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

报警输出：常开常闭信号，控制排风扇，电磁阀信号。

youdao