A digitalclampmeter is a device that measures current, voltage, frequency, capacitance, temperature by magnetic induction. This type of measurement is non-intrusive and very convenient. The digitalclampmeter is squeezed open, and the cable whose current needs measurement is enclosed in the clampmeter loop. The clampmeter is removed after the current reading is made, and all this can be done without having to interrupt the continuity of the cable under test.