With digital meterdisplay, different parameters can be observed at the same time.
采用数字表显示，可同时观察不同参数。
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The frequency area of big caliber vertex flow transducer is small, frequency unit of flow is very big, the change of ration meterdisplay is very large what confine its wide use.
A small transmitter attaches to the cables coming out of the electricity meter and relays information to a wireless digital display that can be placed in the kitchen, living room or anywhere else.