Powered by USB Interface. Plug and Play Device. Automatically Measurement Function. Easy for Operation; Change the Voltage/Time Division Gear with a Single Hand. No Need to Operate on the Computer; Built-in LED Light, Providing Better Light for User's Convenient Operation in Dark Environment; Light Weight and Ergonomic DVM Function, Real-time Display the Voltage Measurement Results; 20MHz Bandwidth. Meet the Requirements of Measurement; Different Kinds of Language Available. 20 Types of Auto Measurement Function, Pass/Fail Function;