Voltage meter with LCD screen A voltage meter with an LCD screen is a multifunctional digital panel voltmeter used to measure and display the voltage of an electrical circuit or component. In fact, most digital meters are mainly based on a voltmeter, and a large number of physical quantities are converted into corresponding electrical signals through sensing and transmission. The input part of the Digital Instrument processes these electrical signals into conventional voltage signals. Therefore, the main body of most digital meters is only a voltmeter, with the difference being the input conversion part. Digital display current and voltage meter is a current and voltage testing instrument with digital display function. With the continuous development of digital technology and microcomputer technology, digital display meters and new display and recording instruments with microcontrollers as the core are increasingly widely used in industrial automation and control fields. Digita…