DT890 true RMS digital multimeter circuit

The probe capacitor polarity needle has a head diameter of 5.8. The total length of the 7-pin and 12-pin needles is 5.
MOSFET imported original FET

The multimeter is also called a multi-meter, a three-meter, a multiplex table, and the multimeter is divided into a pointer multimeter and a digital multimeter. It is a multi-functional, multi-range measuring instrument. The 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 semiconductor. Some parameters (such as β) are shown in the figure for the DT890 true RMS digital multimeter circuit diagram.

DT890 true RMS digital multimeter circuit



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