[High Definition Display]Adopting VA color 6000 counts digital display, equipped with 22mm large characters, analog bar graph, measurement function indication and test input jack indication, clearly presenting the measurement data and function status, meanwhile supporting the second measurement value display, convenient for observation and record. [Intelligent Automatic Features]Equipped with automatic selection of measurement function and automatic range switching function, no need for frequent manual adjustment. According to the measurement object automatically matching the appropriate measurement mode and range, easy and efficient operation. [Multi-functional integration]It can measure AC and DC voltage, current, resistance, capacitance, frequency, duty cycle, temperature and other parameters, and also supports FireWire detection and non-contact AC voltage detection to meet the measurement needs of different scenarios. [Safe and Reliable Design]Comply with IEC-1010 standard, equipped with 600V (CAT Ⅲ) overvoltage category and pollution level 2, double insulation design and perfect overload protection circuit, built-in 800mA/250V and 10A/250V fast fuse to ensure the safety of use. [Convenient Auxiliary Functions]Built-in flashlight lighting function, long press the "HOLD" button to turn on, convenient to work in low-light environments; support Type-C USB interface charging, built-in 3.7V lithium battery (400mAh), excellent endurance. Features: Out of range display: "OL" Maximum display: 6000, color screen negative display. Automatic recognition of automatic measurement function, can also be manually selected. Auto range function. Auto shutdown function: the meter will shut down automatically after about 15 minutes of power on. Power supply: 3 x 7# AAA R03P batteries Sampling rate: 2~3 times per second Fuse: F-800mA/250V, F-10A/250V fast blow fuse (Φ5x20mm) Working environment: Temperature 0~40℃, Relative humidity ≤85%. Storage environment: Temper