Professional RMS Automatic Range Voltage Resistance Frequency Temperature Digital Multimeter

The basic principle of a multimeter is to use a sensitive magnetoelectric DC ammeter (microammeter) as the meter head. When a small current passes through the meter head, there will be a current indication. However, the meter head cannot pass large current, so it is necessary to shunt or reduce voltage by connecting some resistors in parallel or series on the meter head to measure the current, voltage, and resistance in the circuit.

Multimeters, also known as multiplexers, multimeters, triple meters, and multimeters, are indispensable measuring instruments for departments such as power electronics, and generally measure voltage, current, and resistance for the main purpose. The multimeter is divided into pointer multimeter and digital multimeter according to the display mode. It is a multifunctional and multi range measuring instrument. Generally, a multimeter can measure DC current, DC voltage, AC current, AC voltage, resistance, audio level, etc. Some can also measure AC current, capacitance, inductance, and some parameters of semiconductors.