零点和量程调整电位器位于外部，以便于检修。
Zero and Span adjustment potentiometers are located externally as well for easy access.
具有小数点设定、比率、量程及零点调整功能。
With decimal point span range and digit zero setting function .
内部的自动量程数字多用表直接测量11种不同功能，而无需昂贵的外部信号调整。
The internal automatic range digital multi meter directly measure 11 kinds of different functions, without the need of expensive external signal adjustment.
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