Smart Mode: This smart multimeter enters smart mode by default. In smart mode, the voltmeter automatically measures voltage, resistance, and continuity. It can identify the measurement content and select the range with the best resolution, making the measurement more convenient and faster.Rechargeable multimeter: The tester multimeter has a rechargeable function and a built-in 1200 mAh battery. The multimeter will last longer. And what's more convenient is that you no longer need to replace the battery manually.Wide Application: This smart digital multimeter is suitable for diagnosing automotive, industrial, and household electrical problems. The multimeter can accurately measure AC and DC voltage, resistance, continuity, AC and DC current, capacitance, frequency, diode, duty cycle, temperature, NCV, and live wire.Safety instruction: The professional multimeter has two fuses to protect against burnout and overload. Overvoltage protection, anti-high voltage circuit. Soft silicone case protects in drop.