It is ideal for high or low level alarm and pump control duty in Marine tanks in the most arduous and demanding of environments.
此开关是海运过程中多数危险环境中，低高级报警和泵控制功能理想的选择。
Similarly, high-level events can be decomposed into one or more low-level events or actions; for example, changing a pressure control valve, sounding an alarm, or signaling an alert.
类似地，高层次事件能够被拆分成一个或者多个低层次事件或动作；例如，更换压力控制阀、拉响警报或发出警戒信号。
Monitor high and low liquid level conditions. Single or multiple control switch(es) activate an exterior audiovisual alarm.
检测高或低水平条件，单个或多个控制开关可以激活外部的视听觉警报器。
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