Multimeter, also known as multiplex meter, multi-meter, triple meter, complicated meter, etc., is an indispensable measuring instrument in power electronics and other departments, generally to measure voltage, current and resistance as the main purpose.
Multimeter is divided into pointer multimeter and digital multimeter according to the display mode. It is a multi-functional, multi-range measurement instrument, general multimeter can measure DC current, DC voltage, AC current, AC voltage, resistance and audio level, etc. Some can also measure AC current, capacitance, inductance and semiconductors, some parameters (such as β) and so on.