The WL-278 VC97+ is a multipurpose digital multimeter used in electrical, electronic and industrial applications. This multimeter is commonly used to measure basic electrical quantities such as voltage, current, resistance, capacitance, frequency and temperature. It can also have additional functions such as diode and continuity testing. The VC97+ model usually displays measurement results on a digital display. It may have features such as automatic range selection, which helps the user to automatically select the correct measurement range. Some models may also have features such as data hold and recording of maximum/minimum values.