| http://www.w3.org/ns/prov#value | - Sometimes it may be of value to have a testing device which is capable as well to analyze low voltages, for example within the range of 3 V to about 50 V as to have a rough analysis of voltages within a higher amplitude range starting from 110 V to about 380 V. A device specifically designed for meeting these requirements is an embodiment of the invention which will now be described in reference t
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