This element displays input and output in volts, watts, amps, and energy storage level in joules. Combine with 9669 Energy Storage to from the LEGO Energy Meter.

这个设备能够以伏特，瓦等显示输出和输入，以及以焦耳来显示能量存储级。

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Constant flow rate manually adjustable, proportional flow rate according to a digital input signal (from water meter), Power-ON led indicator and level control input. The two different modes are.

比例调节，可根据数字信号（比如水表发出的脉冲信号）来调节流量的比例，带有电源指示和液位探头接口，可直接连接液位探头控制计量泵启动或停止。

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